Noah's Flood and God's Calendar article by Don Roth Biblical Calendar Proof presentation in Spanish The Ten Virgins and Christ's Return biblical article by Don Roth
Don Roth's Evidence proving the true Biblical Calendar

Frequent Biblical Calendar Questions

Biblical Calendar Proof Frequently Asked Questions

Don Roth spent years researching and proving the Biblical Calendar to share the proof with you and all who is interested. Don’s research is quite extensive. Don referenced multiple sources when finding his information and facts, allowing him to have well rounded, easy to prove information so there would be no question. Below are some of the frequent questions people tend to have when following through Don’s story, and watching the Free Biblical Calendar Proof video download. If you don’t find the answer to your question below Don would be happy to explain. You can email Don at or send your questions to Don Roth at PO Box 406, Hustisford, WI 53034. Every question is a good question, and deserves a good answer.

Contact Don Roth to learn more about the mathematical proof and verifying THE true Biblical Calendar of God, or to have Don Roth speak for your group.

A: What is the purpose of presenting this material proving the Biblical Calendar?

The purpose of presenting this material is to show the certainty of the Hebrew Calculated Calendar as the true calendar of God by constructing a progression of time by an unending sequence of seven day Sabbaths beginning with the creation week. When it is shown the weekly Sabbaths coincide with the HCC (Hebrew Calculated Calendar), the biblical accounts of creation, the flood and it’s Sabbaths in Gen. 7, the Sabbaths of Ex. 16, and the Passover of Josh, this confirms God’s method of keeping time and the true Biblical Calendar.

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A: Biblical Calendar – God Starts Moses on a Military Campaign

God starts Moses on a military campaign to conquer the Promised Land on the east side of Jordan. This campaign begins sometime around the middle of the sixth month. This is established through the following scriptures: “Now when all the congregation saw that Aaron was dead, all the house of Israel mourned for Aaron thirty days” (Num. 20:29). “And Aaron the priest went up into Mount Hor at the commandment of the LORD, and died there, in the fortieth year after the children of Israel were come out of the land of Egypt, in the first day of the fifth month” (Num. 33:38).

Aaron died at the beginning of the fifth month and was mourned 30 days. Thus they started their journey to the Promised Land at the beginning of the sixth month. Deuteronomy 1:2 shows eleven days were required to arrive at Mt. Horeb. Numbers 33:41-49 records the Israelites had a total of eight campsites during these eleven days. The forth campsite after leaving Mt. Hor puts them on the border between Moab and the Amorites, placing them at the border of the Promised Land. This sets the travel time at about half of the eleven days.

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A: Biblical Calendar – The Lands God Gave as a Possession

God told Moses that he gave the land of Amon to the descendants of Lot for possession. Deuteronomy 2:5 shows God gave Mt. Seir to the descendants of Esau as a possession. Now note in verse 31 of Deuteronomy 2, “And the LORD said to me, ‘See, I have begun to give Sihon and his land over to you. Begin to possess it, that you may inherit his land.’ “

God gives the land of the king of Sihon as a possession to Israel. Deuteronomy 3:1-2, “Then we turned and went up the road to Bashan; and Og king of Bashan came out against us, he and all his people, to battle at Edrei. And the LORD said to me, ‘Do not fear him, for I have delivered him and all his people and his land into your hand; you shall do to him as you did to Sihon king of the Amorites, who dwelt at Heshbon.” God also gave this land to the Israelites as a possession.” (As a confirmation, see Deut. 3:12-13)

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A: What is E.H. Lindo’s Calendar?

E.H. Lindo’s calendar is a Jewish calendar made up of thirteen 19 year time cycles detailing the beginning of months containing festivals and feast. Don Roth’s Chart #5 is the calendar constructed by E.H. Lindo and is taken from the 11th edition of the Encyclopedia Britannica.

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A: What is Tisri?

Tisri is the first day of the 7th month of the Jewish ecclesiastical, and 1st of the civil year (September-October), the same as Ethanim. The first of Tisri can never fall on a Sunday, Wednesday, or Friday.

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A: What is the Gregorian calendar?

The Gregorian calendar is the internationally accepted Civil Calendar, also known as the Western Calendar or the Christian Calendar.

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A: What are Postponements?

Postponements are rules set down that can change with the start of a new year, adding extra days. Postponements tend to be a very controversial subject within the church. The explanation is: The average lunar cycle has 29.53059 days in a month. Therefore, in twelve months it is only 354.36 days long. This is about 11 days short of the solar year 365.25 days; making it necessary to add an additional month seven times in a 19 year solar cycle.

Postponements regulate the number of days per year.

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A: Explain more thoroughly the correlation between Noah’s Flood and God’s Calendar-

Quoted from Don Roth’s Article: “Noah’s Flood and God’s Calendar”:

The chronological facts that are recorded in the account in the book of Genesis clearly establish a period of 385 days in the year of the Noachian Flood. This year length is significant because it is the exact number of days required for an excessive leap year in the Hebrew Calendar. This remarkable account of the Flood, which God inspired to be recorded in his Work, is the indisputable evidence that the Hebrew Calendar bears His stamp of approval. There can be no doubt that the calculations of the Hebrew Calendar have been the basis of God’s true calendar from the beginning.

(Read article for more information)

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A: Why are there postponements?

The postponements are to keep the Hebrew Calculated Calendar aligned to the moon’s cycle of 19 solar years, and to make sure the Holy Days lie on the correct days of the week according to God’s instructions in the Bible.

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A: How can I find out more?

Calculate Biblical events by date Bible Timeline Research


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