The pre-flood population on the earth, from Adam to Noah, is determined using the Bible as the sole source of doctrine and knowledge. This illustrates authenticity of the biblical scriptures, showing that the book of Genesis alone contains the precise information that would allow any faithful reader to unlock the harmonious truth of the Bible.  Use of modern algorithmic techniques allows one to track the population growth, verse by verse, from Adam to Noah, revealing a world of tens of billions on the Genesis Earth just before the flood.

One often wonders, as a student of the Bible, why there is so much detail given in certain scriptures such as that found in the book of Genesis, from Genesis 2:19 through Genesis 6:4. A completeness of the Bible as the sole source and authority is again revealed as Genesis appears to be directly connected to the new testament of the Bible which describes the modern times of today. I have always believed that the Bible contains absolutely no wasted words; no text put there just for the sake of poetic content, as the Bible is the word of God. Matthew 24:37 seems to connect the modern times of tens of billions on the modern Earth with the Genesis Earth in the days of Noah.

Matthew 24:37 But as the days of Noah were, so shall also the coming of the Son of man be.

This will be very clearly seen after the following encounter. You will require only the skills used to balance your checkbook.

Verse

Patriarchs

Birth Death Maturity Fruitfulness Fi  Population Gi Birth to Death Ratio

=M

Gen 2:7

And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.

Adam   Here, there was no birth. Adam was created by God.     Fi = 1 At this point the tree of life has only 1 branch on it. There is only Adam.

G1 = 1

M=6
At this point there is only Adam. The index i = 1. The Fruitfulness Fi=1, the Population G1=1. This value is set to 1, unless it is stated that more that 1 son or daughter is born.  Gi = 1 An initial Birth/Death ratio value of M=6 assumes that only one death occurred for every 6 births.

Gen 3:21, 22

And the LORD God caused a deep sleep to fall upon Adam and he slept: and took one of his ribs, and closed up the flesh instead thereof;

And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man.

Adam and Eve   Here, there was no birth. God gave Eve to Adam.     Fi = 1 At this point the tree of life has 2 branches on it. There is only Adam and Eve. 

Gi = 2

M=6
Gen 4:1 Adam Eve Cain     2 At this point the tree of life has 3 branch on it. There is Adam, Eve and Cain.

G1 = 3

Gi = (Fi  + Gi-1)
At this point there is Adam,  Eve and Cain. The index i = 2. 

The new population is now G2 = F2  + G= 2  + 1 = 3

This is the value F2 (Fi) added to the previous population G1 (Gi-1)

F2 is set to value 2 because God gave Eve to Adam

With Cain the tree of life now has 3 branches.

 
Gen 4:2   Eve Abel     1 At this point the tree of life has 4 branch on it. There is Adam, Eve, Cain and Abel.

Gi = 4

Gi = (Fi  + Gi-1)
At this point there is Adam,  Eve, Cain and Abel. The index i = 3.

The new population is now G3 = F3  + G= 1  + 3 = 4 

F3 is set to value 1 Gi = 4  
Gen 4:8       Cain slew his brother Abel   (-1 indicates death)

F3 is set to value

F3 = -1

Gi = 3

A branch has been broken off of the tree and Gi is set back to Gi = 3 branches

Gi = (Fi  + Gi-1)
Gen 4:17 Cain begat Enoch     1 With the birth of Enoch the Population is back to 4.

Gi = 4

Gi = (Fi  + Gi-1)
Gen 4:18 Enoch begat Irad     1 The above algorithmic process is repeated.

5 branches

Gi = (Fi  + Gi-1)
Gen 4:18 Irad begat Mehujael     1 6 branches Gi = (Fi  + Gi-1)
Gen 4:18 Mehujael begat Methushael     1 7 branches Gi = (Fi  + Gi-1)
Gen 4:18 Methushael begat Lamech     1 8 branches Gi = (Fi  + Gi-1)
Gen 4:20 Lamech Adah 1st wife Jabal     2 10 branches Gi = (Fi  + Gi-1)
Gen 4:22   Zillah 2nd wife Tubal-Cain, Naamah     2 Gi = 12 Gi = (Fi  + Gi-1)
The population on the earth is at least 12 following the birth of Naamah. 

IMPORTANT Note: The calculation is based only on the patriarchs mentioned in Genesis, not counting all those patriarchs not mentioned in Genesis.

Verse

Patriarchs

Birth Death Maturity Fruitfulness Fi  Population Gi Birth to Death Ratio

=M

Gen 4:25 Adam at 130 begat Seth (in his own image)   Adam lived 800 years, had sons, daughters 6 at this point the tree of life has 288 branches Gi = (M*Fi  + Gi-1)*M
NOTE: Each time it is mentioned in the book of Genesis that a patriarch lived a given number of years and had sons and daughters, a fruitfulness number of 6 is assigned. This may be considered to be reasonable value, as the plurality of "sons and daughters" always implies at least a number of 4 or more children for any given patriarch. Each time, maturity information is given. For instance: Adam was 130 years old at the time he begat Seth, Seth was 105 years at maturity and Enos was 90 years at Maturity. This is found to be vital algorithmic information (no wasted words in the scriptures) that allows one to calculate the fruitfulness Fi and to estimate a birth-to-death ratio M.

In Genesis it is always assumed for numerical calculations that each offspring will have sons and daughters and the M value is multiplied by the Fruitfulness and the total value also multiplied.

Each time that sons and daughters are mentioned, the calculation Gi = (M*Fi  + Gi-1)*M is used.

For the above example in the Bible Verse Gen 4:25, Adam had sons & daughters (the plural of sons, daughters suggests at least 4 children were given birth!) Since sometimes more than 4 children may be given birth each time the Bible indicates sons, daughters. Therefore, a Multiplication Factor of M=6 can safely be assigned. The Fruitfulness in this verse is Fi =6 because sons, daughters are mentioned! 

If the index number for Gen 4:25  is "i", then for the previous verse, Gen 4:24, the index is "i-1" and the previous population was Gi-1 =12. The negative sign in "i-1" refers back to the past! Algorithmically, we may assume that all these future children will also give birth in the same manner and so we multiply this numerical results by the same Multiplication Factor M=6. 

We just plug M=6, Fi =6 and Gi-1 =12 into the formula and recall that the star "*" means multiplication. We now have

Gi = (M*Fi  + Gi-1)*M which is equal to Gi = (6*6 + 12)*6 = 288 for the current population at Gen 4:25. Repeat this for all the other verses.

 

Gen 4:26 Seth at 105 begat Enos   Seth lived 807 years, had sons, daughters 6 1,944 branches Gi = (M*Fi  + Gi-1)*M

from here on the branches on the tree of life are numbering in the thousands

Gen 5:5       Adam lived 930 years, died   -1 1,943 branches Gi = Fi  + Gi-1
Gen 5:8       Seth lived 912 years, died   -1 1,942 branches Gi = Fi  + Gi-1
Gen 5:9 Enos at 90 begat Cainan     1 1,943 branches Gi = Fi  + Gi-1
Gen 5:10         Enos lived 815 years, had sons, daughters 6 11,874 branches Gi = (M*Fi  + Gi-1)*M
Gen 5:11       Enos lived 905 years, died   -1 11,873 branches Gi = Fi  + Gi-1
At this point, the population on the earth is well into the tens of thousands following the life and death of Enos.

Verse

Patriarchs

Birth Death Maturity Fruitfulness Fi  Population Gi Birth to Death Ratio

=M

Gen 5:12 Cainan at 70 begat Mahalalel     1 11,874 branches Gi = Fi  + Gi-1
Gen 5:13         Cainan lived 840 years, had sons, daughters 6 71,460 branches Gi = (M*Fi  + Gi-1)*M
Gen 5:14       Cainan lived 910 years, died   -1 71,459 branches Gi = Fi  + Gi-1

 

Verse

Patriarchs

Birth Death Maturity Fruitfulness Fi  Population Gi Birth to Death Ratio

=M

Gen 5:15 Mahalalel at 65 begat Jared   Mahalalel lived 830 years, had sons, daughters 6

from here on the branches on the tree of life are numbering in the hundreds of thousands

428,970 branches

Gi = (M*Fi  + Gi-1)*M
Gen 5:17       Mahalalel lived 895 years, died   -1 428,969 branches Gi = Fi  + Gi-1
At this point, the population on the earth is well into the hundreds of thousands, approaching millions, following the life and death of Mahalalel, counting only the patriarchs mentioned.
Gen 5:18 Jared at 162 begat Enoch     1 428,970 branches Gi = Fi  + Gi-1
Gen 5:19         Jared lived 800 years, had sons, daughters 6 2,574,036 branches Gi = (M*Fi  + Gi-1)*M
Gen 5:20       Jared lived 962 years, died   -1 2,574,035 branches Gi = Fi  + Gi-1
Gen 5:21 Enoch at 65 begat Methuselah     1 2,574,036 branches Gi = Fi  + Gi-1
Gen 5:22         Enoch walked with God 300 years and had other sons and daughters 6 from here on the branches on the tree of life are numbering in the millions

15,444,432 branches

Gi = (M*Fi  + Gi-1)*M
Gen 5:23

Gen 5:24

      Here, there was no death. Enoch lived 365 years

and God took him

Enoch did not die.

Fi =0

15,444,432 branches Gi = Fi  + Gi-1
 Gen 5:25 Methuselah at 187 begat Lamech     1 15,444,433 branches Gi = Fi  + Gi-1
Gen 5:26         Methuselah lived 782 years, had other sons, daughters 6 92,666,814 branches Gi = (M*Fi  + Gi-1)*M
Gen 5:27       Methuselah lived 969 years, died   -1 92,666,813 branches Gi = Fi  + Gi-1
At this point, the population on the earth is well into the hundreds of millions, approaching a billion, following the life and death of Methuselah.

Verse

Patriarchs

Birth Death Maturity Fruitfulness Fi   Population Gi Birth to Death Ratio

=M

Gen 5:28 Lamech at 182 begat Noah     1 92,666,814 branches Gi = Fi  + Gi-1
Gen 5:30         Lamech lived 595 years, had other sons, daughters 6 556,001,100 branches Gi = (M*Fi  + Gi-1)*M
Gen 5:31       Lamech lived 777 years, died   -1 556,001,099 branches Gi = Fi  + Gi-1
Gen 5:32 Noah at 500

{100 years before the Flood}

begat Shem, Ham, Japheth   Noah is 500 years old at the birth of  birth of Shem, Ham and Japheth 3 556,001,102 branches Gi = Fi  + Gi-1
It is at this point 100 years before the flood at Noah's 500th Birthday 
Gen 6:1 And it came to pass, when men began to multiply on the face of the earth, and daughters were born unto them,
Gen 6:2 That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.
Gen 6:2 men began to multiply on the face of the earth begat       6 + + + at this point the branches on the tree of life are numbering in the billions

Gi = 3,336,006,828 +++

Gi = (M*Fi  + Gi-1)*M
Gen 6:3 And the LORD said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.

Note: Immediately after the Flood of Noah, the longevity of nine hundreds of years noted for the pre-flood Genesis patriarchs was greatly reduced to just over a hundred years.

Gen 6:4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.

At this point, the population on the earth is well into the billions, as it is today!

 IMPORTANT NOTE:  The calculated POPULATION is based solely on patriarchs mentioned in the Bible.

{Giants not counted}

Thus, scientifically, the actual numbers must have been far greater than what is calculated here!

According to the Book of Matthew, Jesus spoke relating to our present times and His coming.

Matthew 24:37 But as the days of Noah were, so shall also the coming of the Son of man be. Matthew 24:38 For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noah entered into the ark, 

Matthew 24:39 And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.

Here, the connection of these modern times of tens of billions on the modern Earth is clearly made with the Genesis Earth in the days of Noah. 

Herewith, the Bible, as the single authentic source, is plainly illustrated using modern numerical analysis!
Gen 6:11 The earth also was corrupt before God, and the earth was filled with violence.

Gen 6:13

And God said to Noah, “The end of all flesh has come before Me, for the earth is filled with violence through them; and behold, I will destroy them with the earth. 

Gen 6:14 Make yourself an ark of gopherwood; make rooms in the ark, and cover it inside and outside with pitch. 
Gen 6:22 Thus Noah did; according to all that God commanded him, so he did.
Gen 7:6 And Noah was six hundred years old when the flood of waters was upon the earth.
Gen 7:12

And rain fell on the earth forty days and forty nights.