Biblical Research


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Don Roth spent over 3 years researching and completing a reference as proof for the absolute Biblical Calendar. The first factor influencing Don’s research was a challenge in 2007 by a group of people to prove which calendar among the many being circulated amidst God’s people is in fact the TRUE Biblical Calendar.

This was followed by the unprecedented flooding in the Midwestern United States in 2008, causing Don to review the account of Noah’s Flood in Genesis 7 and 8. During this review, Don became aware of the very detailed recordings of the passage of time that Noah left as the events of the flood were told. The story of the Noachian Flood left proof of the Flood year having 385 days.

Computation of the number of days passed in the year of the Noachian Flood:

Event Days

Genesis 7:11 – Flood begins on 17th day of 2nd month (30 days in the 1st month plus 16 days in the 2nd)

46 days

Genesis 7:12 – Rain for 40 days and 40 nights

40 days

Genesis 7:24 – Waters prevail

150 days

Genesis 8.3 – Waters abate

150 days


386 days

Genesis 8.13 – Water dried on first day of the next year

-1 day

Final Total:

385 days

From Here, Don Roth began to dig deeper in his research. He then studied the question “When did God start His clock?” He was able find the answer in Genesis 1:14-19 where it states:

God’s creation of day versus night in the Biblical Calendar

"Then God said, 'Let there be lights in the firmament of the heavens to divide the day from the night; and let them be for signs and seasons, and for days and years; and let them be for lights in the firmament of the heavens to give light on the earth; and it was so' God made two great lights; The greater light to rule the day, and the lesser light to rule the night. He made the stars also. God set them in the firmament of the heavens to give light on the earth, and to rule over the day and over the night, and to divide the light from the darkness. And God saw that it was good. So the evening and the morning were the fourth day."

It is here where Don found proof of the instruments God had created for man to keep track of time, and delineates their absolute function. This was yet another step forward in proving the factual passage of time and calendar or events. The facts demonstrate that it is the respective intervals of the actual movement of the earth, the moon, and the sun themselves that determine the construction of the sacred calendar (and consequently, the commemoration of the events associated with it), rather than simply our visual observation or recognition of these astronomical events which may be impaired by various local atmospheric conditions.

Don Roth continued to research further and further into the concept and passage of time within the Bible as well as the passage of time and dates each calendar claimed. He put together 20 mathematical charts all leading up to the final PROOF.


The celestial bodies have a fixed known cycle which has been recorded by astronomers, and is known as the Metonic cycle. This is made up of thirteen shorter segments, each segment containing nineteen years. The total of these thirteen segments is two hundred and forty-seven years, which repeats itself beginning at creation and continuing without interruption to the present time.

All of these cycles have embedded within them the seven day week of creation; so embedded that the last week of every thirteenth cycle ends on the seventh day of the week, meaning that the next beginning cycle of the thirteen has day one as the first day of the week, Sunday, just as the creation accounts relates.

Biblical Timeline Chart

Biblical Charts