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For centuries, the entire world has followed the common Roman (Gregorian) Calendar. Mainstream “Christians” peg their popular (albeit unbiblical) holidays to this calendar—New Year’s Day, Christmas, Halloween, Easter, etc. Moreover, in the “Christian” world, the week revolves around their chosen day of worship, Sunday. Amazingly, today’s “Christianity” operates in utter ignorance of the true weekly Sabbath (Saturday, the seventh day of the week) and the biblical festivals commanded by God in the Old Testament—which, as can be easily proven, are still binding on Christians (for a thorough study on this vital topic, please request our free book Occult Holidays or God’s Holy Days—Which?).
These biblical festivals and high days are, essentially, God’s “appointed times.” Both the weekly Sabbath and the annual holy days occur on specifically appointed days or dates. The Sabbath, for example, always falls on the seventh day of the weekly cycle, as set from creation. This can still be seen even in the Gregorian Calendar, which rightly places Saturday as the seventh day of the week. Similarly, God’s holy days fall on specific days of specific months. For instance, Passover always falls on the evening of the 14th day of the first month.
But Passover (as well as God’s other “appointed times”) cannot be determined by simply following the Gregorian Calendar. How, then, does one seeking to genuinely obey God go about determining when to keep His high days? How does a month begin, according to Scripture? When is the “first month” of the year, according to God? The answer is found in understanding God’s Sacred Calendar, or the Calculated Hebrew Calendar (CHC).
Theologians have for centuries devised various liturgical calendars. Even among those who recognize the validity of the Old Testament holy days, numerous “calendar systems” have flourished. While such calendar schemes purport to proclaim God’s high days, they have proven to be complex, confusing and contradictory to Scripture. Yet we know that God Himself is not the author of such confusion (I Cor. 14:33). Rather, it is the misguided schemes of men that cause confusion.
In order to understand the importance of the Calculated Hebrew Calendar, we need to ask one fundamental question: Did God leave it to men to devise their own calendars in order to observe the Sabbath and holy days on the days of their choosing? Indeed, if God has not provided clear, definitive directions on the observance of what He considers to be holy time, then any calendar scheme men might devise would, by default, be acceptable before God. But such a proposition is absurd, and suggests that God is weak, inde- cisive, and has no real plan. But if God did give definite instructions— commandments, laws and statutes—in His Word concerning when to observe His Sabbath and festivals, then are we not obligated to follow those instructions?
Of the God Who created the entire universe, Scripture says: “ ‘To whom then will you compare Me, or who is My equal?’ says the Holy One. ‘Lift up your eyes on high, and behold, Who has created these things, Who brings out their host by number? He calls them all by names by the greatness of His might, for He is strong in power; not one fails. Why do you say, O Jacob, and O Israel you speak, “My way is hidden from the LORD and my cause is disregarded by my God?” Have you not known? Have you not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, does not grow weak nor weary? And His understanding no one can fathom’ ” (Isa. 40:25-28).
Since God is creator of the entire universe—all the stars and galaxies, which He calls by number—He knows how it functions. After all, He created time and the astro-mathematics by which the entire universe has functioned since the beginning of creation, and will continue to function throughout the ages into eternity. Thus, the Almighty is the only one Who can provide mankind with a fully accurate method of determining the “appointed times” He has ordained and commanded. No man has that ability— only God. In fact, no man or group of men has ever been able to devise a calendar that is as accurate as the Calculated Hebrew Calendar—not even NASA or the U. S. Naval Observatory, with all of their hi-tech computerized equipment.
Since no man can correctly determine the “appointed times” of God, He alone had to make this knowledge known through divine revelation. Indeed, God revealed His method of accurately calculating the Sacred Calendar to the Levites and the Aaronic priesthood of ancient Israel. This is why we find in Leviticus 23 the specific dates commanded for the Passover and the Feast of Unleavened Bread (with holy days on the 15th and 21st days of the first month); the proper count to Pentecost—using seven complete weeks, each ending on a weekly Sabbath, plus one day for the Day of Pentecost; the Feast of Trumpets on the first day of the seventh month; the Day of Atonement on the 10th day of the seventh month; the Feast of Tabernacles (with a single high day on the 15th day of the seventh month); and, finally, the eighth-day festival called the Last Great Day (falling on the 22nd day of the seventh month).
But having these preset dates is not enough to establish precisely when God’s high days are to be observed. When is the first month of the year? How do we determine the beginning of the seventh month? Again, this information is not a part of any man-made calendar, such as the Gregorian Calendar. It can only be found by following the Calculated Hebrew Calendar.
Various sightings of the “new moon” crescent fall short of a complete method for determining the Sacred Calendar. Moreover, the mathematical formula for determining such calendar dates is not found in the Bible. What we do find, however, is that God gave the formula and the authority to calculate His high days to the Levitical priesthood—and to no one else. Indeed, God clearly designated the priests in Leviticus 23 to proclaim the appointed feasts: “These are the appointed feasts of the LORD, holy convocations which you [the priests] shall proclaim in their appointed seasons” (Lev. 23:4).
This is why the apostle Paul wrote, “What then is the advantage of the Jew, or what is the profit of circumcision? Much in every way. Primarily, in that they were entrusted with the oracles of God” (Rom. 3:1-2). The “oracles” of God were given to the Levitical/Aaronic priests within the Jewish nation, and consist of the entire Old Testament and the methods of calculating the Hebrew calendar. Accordingly, the prophet Malachi wrote that “the priest’s lips should keep [guard, preserve, have charge over] knowledge, and [that] the people should seek the Law at his mouth; for he is the messenger of the LORD of hosts” (Mal. 2:7). (Importantly, the “oracles” do not include the Jews’ “oral law.” Over time, Jewish rabbis perverted the trust God had placed in them by falsely claiming that their humanly-devised “oral traditions” were also given by God.)
Indeed, the Calculated Hebrew Calendar is not something to be devised according to the whims and traditions of men. It is in fact set by God—and has been preserved for us to this day.
The Weekly Seventh-day Sabbath Cycle
To begin, we must first examine God’s weekly seventh-day Sabbath cycle—which is foundational to His entire Sacred Calendar. Did God leave the choice to men to select one day in seven as a day to worship Him? Or, in the beginning, did God specially appoint the seventh day as His Sabbath, specifically blessing and sanctifying the seventh day?
According to the scriptural account, He indeed did! He specifically designated the seventh day of the repeating seven-day cycle as the Sabbath. We have the record in Genesis chapters one and two. From the beginning, we find that God continuously counts seven days in a never-ending sequence, and that the seventh day is always the weekly Sabbath. There are no exceptions in the entirety of the Bible. Therefore, Sunday (or any other day) can never be God’s weekly Sabbath, because He has created only the seventh day to be holy. Moreover, no man has the authority to make any day holy!
The account in Genesis chapter one gives us the record of the creation of the earth (actually the renewing of the earth) in six days. Each day is numbered and designated by the phrase “the evening and morning” in describing a whole day—a 24-hour day. Each day is counted in sequence with no gaps, partial days, or uncounted days.
In Genesis chapter two we have the record of God’s creation of the first Sabbath day—the seventh day: “And by the beginning of the seventh day God finished His work which He had made. And He rested on the seventh day from all His work which He had made. And God BLESSED the seventh day and SANCTIFIED it [set it apart] because on it He rested from all His work which God had created and made” (Gen. 2:2-3). Thus, God’s Sabbath cannot fall on any other day of the week, and no man has the authority to change it. Notice also that the Sabbath is independently reckoned by counting the days in a continuous seven-day sequence. As we will see, this day-by-day reckoning of the weekly cycle is separate from the reckoning of the days, months and years of the sacred CHC. The seven-day weekly cycle never varies and has never been changed by God. In fact, there is not a single passage in the Bible indicating that time has ever been “lost” or not counted—not a day, week, month or year has ever gone missing! God accounts for all time!
The Exodus and the Sabbath: During the Exodus from Egypt, God revealed the seventh-day weekly Sabbath to the children of Israel by the giving of manna (Ex. 16). In this account, beginning on the morning of the first day of the week, God sent manna from heaven for the children of Israel to eat each day. For the first five days of the seven-day week, He sent only the portion for each particular day. God specifically commanded them not to gather more than what was to be eaten for each day. Those who disobeyed and gathered more found that the extra manna bred worms and stank, making it unfit to eat.
However, on the sixth day, God commanded the children of Israel to gather twice as much as they did on each of the first five days. This two-day supply was for the sixth day and the seventh-day Sabbath. God also commanded them not to go out to gather manna on the seventh day, because He would not send it. Notice God’s reaction when some disobeyed and went out on the Sabbath morning to look for manna: “And it came to pass that some of the people went out on the seventh day in order to gather, but they did not find any. And the LORD said to Moses, ‘How long do you refuse to keep My commandments and My laws? See, because the LORD has given you the Sabbath [God determines the Sabbath—not man], therefore He gives you the bread of two days on the sixth day. Let each one stay in his place. Do not let any one go out of his place on the seventh day.’ So the people rested on the seventh day” (Ex. 16:27-30).
For forty years God consistently sent manna six days a week—with a double portion on the sixth day—but He never sent manna on the seventhday Sabbath. The seven-day weekly cycle remained unchanged for the entire forty-year period.
To help Israel always remember that it was God Who fed them for those forty years, He commanded that Aaron gather an omer of manna be kept before the Lord as a witness of what God had done: “And Moses said, ‘This is the thing which the LORD has commanded, “Fill an omer of it to be kept for your generations, so that you may see the bread with which I have fed you in the wilderness, when I brought you out from the land of Egypt.” ’ And Moses said to Aaron, ‘Take a pot and put an omer full of manna in it, and lay it up before the LORD to be kept for your generations.’ As the LORD commanded Moses, so Aaron laid it up before the testimony to be kept. And the children of Israel ate manna forty years until they came to a habitable land. They ate manna until they came into the borders of the land of Canaan” (Ex. 16:32-35).
Later, after the Ark of the Covenant was made, the omer of manna was put inside the ark along with the tables of stone (on which God had written the Ten Commandments) and the rod of Aaron that budded (Heb. 9:4). At the end of forty years, after the children of Israel entered the Promised Land, the manna ceased the day after they had eaten of the grain of the land (Josh. 5:12). However, the continuous counting of the seven-day cycle has remained unchanged.
It is essential to understand that God correlates all time—days, months and years—with His created seven-day cycle, with the Sabbath always being the seventh day of the week. The seven-day weekly cycle is the foundation of all time on earth. There is absolutely no exception to the day-by-day count of seven consecutive days. This seven-day cycle has been repeated perpetually from creation until now, and will likewise continue eternally into the age of the new heavens and new earth: “ ‘For as the new heavens and the new earth, which I will make, shall remain before Me,’ says the LORD, ‘so will your seed and your name remain. And it shall come to pass, that from one month to another, and from one Sabbath to another, shall all flesh come to worship before Me,’ says the LORD” (Isa. 66:22-23).
God’s Seven-day Cycle Unbroken
At no time has God ever mentioned or even hinted in Scripture that the seventh-day weekly Sabbath is to be reckoned by any other method than by a continuous counting of seven days as established from creation. This fact is supported by God establishing the weekly Sabbath as a perpetual covenant: “You shall keep the Sabbath therefore, for it is holy to you. Everyone that defiles it shall surely be put to death, for whoever does any work on it, that soul shall be cut off from among his people. Six days may work be done, but on the seventh day is the Sabbath of rest, holy to the LORD. Whoever does any work on the Sabbath day, he shall surely be put to death. Therefore the children of Israel [the church is spiritual Israel] shall keep the Sabbath, to observe the Sabbath throughout their generations as A PERPETUAL COVENANT. It is a sign between Me and the children of Israel forever; for in six days the LORD made the heavens and the earth, and on the seventh day He rested, and was refreshed” (Ex. 31:14-17).
When God gave the Ten Commandments, the Fourth Commandment was the Sabbath command. Notice how this command reflects a continuous counting of days in the seven-day cycle from creation: “Remember the Sabbath day to keep it holy. Six days you shall labor and do all your work. But the seventh day is the Sabbath of the LORD your God. In it you shall not do any work, you, nor your son, nor your daughter; your manservant, nor your maidservant, nor your livestock, nor the stranger within your gates; for in six days the LORD made the heaven and the earth, the sea, and all that is in them, and rested the seventh day. Therefore the LORD blessed the Sabbath day and sanctified it” (Ex. 20:8-11). God also commanded that the Sabbath was to be kept from sunset to sunset (Lev. 23:32).
In the New Testament we find that Jesus and His disciples kept the weekly Sabbath. As “God manifested in the flesh,” Jesus proclaimed that He is “Lord of the Sabbath” (Mark 2:27-28); as Lord God of the Old Testament, He was the one Who had created time, beginning with the continuous sevenday cycle leading to the seventh-day Sabbath. He is the one Who created the cyclical seven-day Sabbath count.
Contrary to what some religionists claim, time has never been lost. God—“with Whom there is no variation, nor shadow of turning” (James 1:17)—has continually upheld the vital seven-day cycle. While numerous religions have designated various days as “holy days” or “Sabbaths,” such proclamations are null and void before God. All self-proclaimed human decrees or calendar schemes have absolutely no effect upon God’s divinely ordained seven-day cycle—nor do they alter His seventh-day Sabbath.
Today, in most of the world and in nearly every language, the seventh- day Sabbath is known as Saturday on the Roman Civil Calendar. In spite of the fact that Europe utilizes a calendar that has been reconfigured to make Sunday appear to be the seventh day of the week, God is not bound by this calendar arrangement devised by men and sanctioned by the Roman Catholic Church. The European calendar notwithstanding, the seventh-day Sabbath of God, as commanded in the Bible, is still designated on the Roman Calendar as Saturday (though it appears as the sixth day on today’s European calendar). Man’s attempt to make it appear that Sunday is the seventh day of the week does nothing to change the true seventh-day Sabbath as commanded by God throughout Scripture. For thousands of years, the Jews’ observance of the seventh-day Sabbath has been and continues to be living proof of this fact. While scattered into all parts of the world, the Jews have never lost the correct day for the Sabbath. (The weekly Sabbath is reckoned from sunset to sunset wherever one may live on the earth. For more information on the Sabbath, you may request our booklet Which Day is the True Christian Sabbath.)
The Calculated Hebrew Calendar
The Sacred Calendar of God is called the Calculated Hebrew Calendar (CHC). As a solar/lunar calendar, the CHC bases its years on the sun and utilizes the phases of the moon to determine the beginning of months. Importantly, the CHC retains God’s continuous, cyclical count of the seven-day week to which the months and years must conform. The CHC is in harmony with and includes the counting of the days of the week (which are reckoned each day from “sunset to sunset”). In other words, God’s reckoning and calculating of the months and years is entirely separate from—but runs parallel to—the weekly cycle.
On the fourth day of creation, God set the positions of the sun and moon (and the stars), which form the basis of the calculations of the CHC as a means of establishing days, months and years. “And God said, ‘Let there be lights in the firmament of the heavens to divide between the day and the night [days are first], and let them be for signs, and for appointed seasons [the annual feasts], and for days [the annual holy days] and years [including the seventh-year land Sabbath and Jubilees every fifty years]; and let them be for lights in the firmament of the heavens to give light upon the earth.’ And it was so. And God had made two great lights, the greater light to rule the day and the lesser light to rule the night; and God had made the stars also. And God set them [in their exact positions] in the firmament of the heavens to give light upon the earth, and to rule over the day and over the night, and to divide between the light and the darkness. And God saw that it was good. And the evening and the morning were the fourth day” (Gen. 1:14-19).
From Genesis chapters seven and eight, we are able to determine that at the time of the Flood each month contained thirty days. The Flood began “in the second month, on the seventeen day of the month…. And the waters prevailed upon the earth a hundred and fifty days … and at the end of the hundred and fifty days the waters had gone down. And in the seventh month, on the seventeenth day of the month, the ark rested upon the mountains of Ararat” (Gen. 7:11, 24; 8:3-4). From these passages we can conclude that, from the beginning, each month had 30 days. This indicates that a year must have had 12 months of 30 days each, thus making 360 days in a year.
After the Flood in 2367 BC to the final exile of the Jews to Babylon in 585 BC, a total of 1782 years, there were various astronomical events by which God directly altered the arrangement of the heavenly bodies within the solar system—including the sun, moon and earth. As a result, the orbit of the earth around the sun was changed enough to lengthen the solar year from 360 days to 365¼ days. In approximately 800 BC, the last astronomical event found recorded in the Bible occurred in the days of King Hezekiah of Judah, when the shadow on the sundial was moved backward by 10 degrees.
These astronomical events were beginning to alter the way the sun and moon would keep time. Notice this intriguing quote by the Russian scholar Immanuel Velikovsky, from his 1950 book Worlds in Collision: “All over the world [in numerous cultures] we find that there was at some [ancient] time the same calendar of 360 days [per year], and that at some later date, about the seventh century before the present era … a series of catastrophes occurred that changed the axis and the orbit of the earth and the orbit of the moon; and [we further find that] the ancient year, after going through a period marked by disarranged seasons, settled into a ‘slowmoving year’ (Seneca) of 365 days, 5 hours, 48 minutes, 46 seconds, [with] a lunar month being equal to 29 days, 12 hours, 44 minutes, 2.7 seconds, mean synodical period.” Here, Velikovsky verifies from history what Genesis suggests, that there has been a change from a 360-day year (with 30-day lunar months) to an odd 365¼-day year with months averaging 29.53 days.
With these accumulated changes in the astronomical position of the earth in relationship to the sun, the earth’s orbit was elongated causing 5¼ days to be added to the solar year. It also affected the movement of the moon, reducing it’s orbit around the earth from 30 days to 29.53 days. After these changes, which God caused to happen, it was necessary for Him to reveal the new calculations to the Aaronic priesthood in order to keep the CHC accurate and maintain the “appointed times” in their seasons.
We have direct calendrical proof that God did indeed update the Levitical/Aaronic priesthood with new calculations for the Sacred Calendar after these astronomical events. From the destruction of Jerusalem and the First Temple, the Jews were exiled into many of the countries in the Middle East, with the majority of them living in Babylon. After the 70-year exile, some of the Jews returned to Judea to rebuild the city and the temple under the leadership of Zerubbabel, the governor, and Joshua, the high priest. The fact that they kept the Passover and the Feast of Unleavened Bread after the completion of the Second Temple shows that the priests determined these festival dates using the updated calculations God had given to them before the exile.
Some years later, before the city of Jerusalem was completely rebuilt, these calculations were preserved by Ezra the priest. In order to return the Jewish people to the true worship of God, Ezra established the Great Assembly of 120 priests. It was Ezra, with the help of these priests, who was responsible for the canonization of the Old Testament into the form we have today. At the same time, Ezra also formed what later became known as the “Calendar Court,” which was responsible for properly calculating and proclaiming the festivals and holy days in their seasons as God had commanded in Leviticus 23. From that time until the destruction of the temple in 70 AD, the priests of the Calendar Court faithfully calculated the Sacred Calendar and proclaimed the “feasts of the Lord in their seasons.”
During the time of Christ, the High Priest and president of the Sanhedrin was called Nasi, and was in charge of the calculations for the CHC. The Nasi had a lineage going back to Ezra, who traces his line back to Hilkiah, the High Priest who was the father of Jeremiah the prophet. They had all inherited a full knowledge of the CHC, with all of its God-given rules for the proper calculation of the high days.
The Nasi’s, still of priestly lineage, continued to rule beyond Jerusalem from just after the time of Christ up to Hillel II in the 300s AD. Thus, we have a central calendar authority invested in a single family of the Aaronic line, going from the middle 300s AD back to Ezra, and then back to Hilkiah.
The popular idea that Hillel II “invented” the CHC with its various rules of calculation is contrary to the records of history, both in the Bible and those histories that have been accurately maintained by the priests and Levites within the Jewish community. Hillel II, as the last of the great sages, used his office of Nasi to absolutely guarantee that the knowledge of the CHC and its methods of calculation would not be lost. He made sure this priestly knowledge—withheld from the general populace until his day—was imparted worldwide to all Jews (and thus to the world). Hillel’s motive was simply this: He was concerned that continued Roman persecution might compromise (or even eliminate) the Jews’ observance of the holy days at the proper times as commanded by God.
The Jewish people and the early New Testament Christians were scattered far and wide throughout many nations—from the Middle East to the Atlantic and the British Islands in the west; to Europe, Scythia and Parthia in the north; from Babylon and Persia to India in the east; and from Egypt and North Africa to Ethiopia in the south. Therefore, because of this scattering, direct visual sighting of the “new moon” (the first visible crescent) for determining the beginning of a month as seen from the narrow geographical strip of the holy land and Jerusalem was no longer accurate. Why? Because the new moon does not appear on the same day in these distant places of the world.
However, the calculations God gave to the priests and Levites to accurately reckon the festivals made it possible for the holy days to be observed at the same time worldwide. Furthermore, with the CHC, the high days could be precisely determined years in advance. The discussion of the ancient rabbis in the tractate Rosh Hashanah offers historical evidence that the Sacred Calendar at the time of Christ and the apostle Paul was calculated, with all the necessary rules to keep festival observance accurate throughout time. In fact, the calculations of the CHC can be used to determine festival dates for any year into the future, as well as to accurately calculate such dates back in time to the 800s BC.
Today, even with the advent of “modern astronomy” and its supertelescopes coupled to high-speed supercomputers, no one has been able to improve on the CHC. Indeed, the CHC that God has given to the Aaronic priesthood (which has been preserved by Orthodox Jews for us today) is more accurate in calculating the festivals and holy days of God than any modern method. And it should be, because God ordained it.
The Calculated Hebrew Calendar Is Accurate for us Today
We need to know whether or not the CHC—as it is currently calculated, and has been calculated for thousands of years by the Levitical priesthood— is in fact the God-ordained method we should use today to determine when God’s holy days should be kept. If it is, and we can prove it, then we should not tamper with it. It is just that simple.
Simple Proof of the Accuracy of the CHC: According to the CHC, on the night of the beginning of the 15th day of the first month (Nisan), the first day of the Feast of Unleavened Bread, and on the night of the beginning of the 15th day of the seventh month (Tishri), the beginning of the Feast of Tabernacles, there is a full moon. Anyone can observe the moon on those two nights and see that it is full. Personally, I have done this for 51 years and the moon has always been full. This is simple proof of the accuracy of the CHC.
Two Major Additional Proofs: In the Harmony of the Gospels and in the Faithful Version of the Bible (see the front section, “Other Works by the Author”), we present detailed scriptural and calendrical information about the birth and death of Jesus Christ. This information clearly proves that God used only the CHC in fulfilling His prophecies about these two most important biblical events. These two proofs, noted below, are also covered in detail in chapters one and three, respectively, of this book.
Proof Number One: Paul writes of the “appointed time” of Jesus’ birth: “Now then, I say, for as long a time as the heir is a child, he is no different from a servant, although he be lord of all; but he is under guardians and stewards until the time appointed beforehand by the father…. But when the [appointed] time for the fulfillment came, God sent forth His own Son, born of a woman…” (Gal. 4:1-2, 4; see chapter one).
Proof Number Two: In his epistle to the Romans, Paul again writes that Jesus’ death occurred at the “appointed time” of God: “For even when we were without strength, at the appointed time Christ died for the ungodly” (Rom. 5:6; see chapter three). We find in the book of Revelation that this “appointed time” of Jesus’ death had been predetermined from the foundation of the world, as Christ is “the Lamb of God slain from the foundation of the world” (Rev. 13:8).
On what “appointed day” did Jesus die? It was the Passover day, Nisan 14, in 30 AD, according to the CHC—April 5 according to the Gregorian Calendar. Furthermore, the CHC shows that this day was in the middle of the week—the fourth day, Wednesday. This made it possible for Jesus to be in the tomb for exactly three days and three nights, and be raised from the dead toward the end of the weekly Sabbath—just as He had prophesied!
Why is it important that God fulfilled these two central prophetic events on the exact day He said? THEY PROVE THAT GOD’S WORD IS TRUE AND THAT HE FULFILLED THESE EVENTS ON THE EXACT DAY HE HAD “APPOINTED” BEFOREHAND—FROM THE FOUNDATION OF THE WORLD! Moreover, all of the prophesied details of events related to these days were fulfilled! Not one word failed!
These key events were fulfilled on the exact days foretold by prophecy thousands of years before. This means the timetable God used to accomplish these prophecies was predetermined by the CHC. Thus, the CHC— with all of its rules and postponements—is the only calendar designed, ordained and authorized by God for the observance of His Sabbaths and holy days. All other calendar schemes of men are null and void. No one should allow himself or herself to be deceived into rejecting the CHC in order to follow calendar schemes of men!
If you would like additional information on this subject, please request our Calculated Hebrew Calendar Pack. It contains detailed written studies; four 90-minute DVDs; a book on how to calculate the Hebrew Calendar; and a CD that contains the mathematical formula for calculating the feasts and holy days of God. For those interested in purchasing a book on God’s Sacred Calendar, Arthur Spier’s revised third edition of The Comprehensive Hebrew Calendar, 1900-2100 AD may be obtained from Feldheim Publishers. You may e-mail them at sales[@]feldheim.com or order by calling 1-800-237-7149.
