Adam to Abraham

More human history happened between Adam and Abraham than any other period. The time implied by this interval is captured in the geneologies of Genesis 5 and 11. The key for finding the right overall time for this interval is hidden away in Luke. That key forces most, but not all, of the life spans in Genesis to be run together end-to-end.


The previous lectures covered foundational issues, counting fatherhood, and how genealogies are decorated with age lengths that are often run together end-to-end. Now it is time to address the trunk time line and at span the time from Adam to Abraham...

SO: "How long was it from Adam to Abraham?"

The raw data we need to answer this question seems rather simple. Genesis chapters 5 and 11 provide genealogies which string together a list of names and life spans. From this we can apparently construct the overarching calendar for this period. The following table contains the data from these chapters in Genesis.

Name Life Span At Fatherhood After Fatherhood
Adam 930 years1 130 years2 800 years3
Seth 912 years4 105 years5 807 years6
Enosh 905 years7 90 years8 815 years9
Kenan 910 years10 70 years11 840 years12
Mahalalel 895 years13 65 years14 830 years15
Jared 962 years16 162 years17 800 years18
Enoch 365 years19 65 years20 300 years21
Methuselah 969 years22 187 years23 782 years24
Lamech 777 years25 182 years26 595 years27

The dates given for Noah are similar to the previous men but the flood interrupts things and takes on the same literary role as fatherhood for the earlier men. The following is what we know about Noah:

Name Life Span At Fatherhood At Flood After Flood
Noah 950 years28 500 years29 600 years3031 350 years32

Past Noah the structure of Genesis changes. First we're given a specific detail dealing with Shem that will re-sync his life to the flood:

Name At Fatherhood
Shem 2 years after flood33

From here to Abraham there is only two numbers given for each man. We are not given the total, only the age at fatherhood and the remaining years. The following table summarizes the data provided.

Name At Fatherhood After Fatherhood
Shem 100 years34 500 years35
Arphaxad 35 years36 403 years37
Shelah 30 years38 403 years39
Eber 34 years40 430 years41
Peleg 30 years42 209 years43
Reu 32 years44 207 years45
Serug 30 years46 200 years47
Nahor 29 years48 119 years49

The last fellow before Abraham is Terah and the data given for him is also slightly different. The total life span is given again This is similar to the earlier list and starts to follow a pattern we’ll see again in later generations. The following is what we are given for Terah.

Name Life Span At Fatherhood
Terah 205 years50 70 years51

This data is the raw material given in Genesis that provide the framework for figuring out the amount of time between Adam and Abraham. No where else is there such an exhaustive list, the other lists that do exist only provide names. One of those lists disagrees with the list provided in Genesis. That list is provided in Luke. We turn there now.

Luke’s Objection

Luke chapter 3 echos the chronology of Genesis, but with one important addition. In Luke’s account of the birth of Jesus, he records Jesus’ genealogy. This genealogy of Jesus starts with Adam, just like Genesis, but there is a difference. Luke’s genealogy does not agree with the genealogy in Genesis. This is a New Testament key to Time in the Bible, a key that removes a veil from proper understanding of the overall chronology of the Bible.

The following table shows the two versions side by side for the family tree through Abraham.

Genesis Genealogy Luke’s Genealogy
Adam Adam
Seth Seth
Enosh Enosh
Kenan Kenan
Mahalalel Mahalalel
Jared Jared
Enoch Enoch
Methuselah Methuselah
Lamech Lamech
Noah Noah
Shem Shem
Arphaxad Arphaxad
* No name given * Cainan
Shelah Shelah
Eber Eber
Peleg Peleg
Reu Reu
Serug Serug
Nahor Nahor
Terah Terah
Abram Abram

Reconciling Genesis and Luke

There is a simple reconciliation between Luke and Genesis, one that has dramatic impact on the chronology implied by the dates given in Genesis alone.

The Hebrew word for father is best translated into English as ancestor. Most modern translations footnote this in the Genesis genealogies. If we take this meaning from the Hebrew genealogy of Genesis, the two lists are in agreement. Arphaxad is the ancestor of Shelah, through, Luke adds, Cainan.

If we accept that these two books of the Bible are in agreement, and they should be, they were both "God Breathed" and are both authoritative, we must decide what God meant by the life lengths provided only in Genesis.

How can the numbers provided in Genesis mean anything useful if Cainan actually lived between Arphaxad and Shelah?

The answer is rather simple. Genesis tells us that Arphaxad became the ancestor of Shelah when he was 35 years old. 52 The man actually born at this point must have been Cainan, or some other unnamed relative, who then became the ancestor of Shelah.

This reconning works with the Hebrew and Greek, and reconciles the genealogy, but when was Shelah born? What number are we to use to determine his first year of life?

The answer is simple. The last year of Arphaxad’s life, the only other number given, must be telling us the start of Shelah’s life.

End to end? Yes.

This is in a pattern used directly in Exodus Chapter 6. Here, in a similar genealogy, only the overall life length is given and we are expected to run them together end-to-end, just like here in Genesis.

So Genesis really says that here are a bunch of men. Each became the ancestor of the next at a certain age. The life span of the next man in the list begins when the previous one ends. This is consistent with the Hebrew, with the New Testament, and with Exodus. It also makes the total amount of time covered by this list much longer than if these generations overlap.

Not all of the generations overlap this way. In an interesting twist in the Hebrew, some of the generations are what we in modern English would call "true father/son" relationships. We turn to those now.

True Sons

Though most of the life lengths given in Genesis are to be run together end-to-end, not all of the life spans work this way. Genesis uses an important literary device to show when there is a true father/son pair as we think of it today.

In Hebrew, a language where the normal word for father also includes the meaning for grand-father and great-grand-father and great-great-grand-father back to any number of generations, a different word must be used to indicate immediate father/son pairs.

These tight pairs happen when the father is said to have named the son. This is something that only immediate fathers do. Adam names Seth53, Seth names Enosh54 and Lamech names Noah 55 so each of these are immediate father son pairs.

There is a forth case. Noah really is the father of Shem. We know this because the family of 8 all ride in the ark together. No other generation went along for that ride.

The fact that these four are specifically identified as having named their sons, and that the author of Genesis deliberately excepts the standard meaning "ancestor" for the Hebrew word for "father" is itself a confirmation that both forms of meaning are used in the Genesis account.

Fathers Name Sons in What Year?

To complicate matters we need to pay attention to the way Genesis tells us about the fathers naming their sons.

Children were not named until they were at least 8 days old. This means that the child was in their first year of life when they were named. This first year of life is the same year as the father whose age is being given at the naming.

This has an important ramification to how the genealogies overlap. Adam named Seth when Adam was in his 130th year. Seth, when he was named, was in his first year. The arithmetic difference between these two ages is 129 years, not 130 as we would quickly leap to if we are not very careful.

Noah’s Sons

Noah presents a further puzzle. At first glance all seems well. The following is the starting point for this.

Genesis 5:32
32And Noah was 500 years old, and Noah bore Shem, Ham, and Japheth.

The key word in this verse is after. Compare the text of Genesis 5,3 where the word after does not occur. In Adam/Seth’s time Adam is 130, and Seth is 1, and these are in the same year. Here with Noah’s sons the year before the year of interest is being named. Is it the year 501 when Shem is born? How do we know?

Further details are seen in in other verses. The age relationship between Shem, the son through whom the time sequence is given, is found later. Here is the verse in question.

Genesis 11:10
10These are the generations of Shem: Shem was 100 years old, and bore Arphaxad, 2 years after the flood.

This links the age relationship between Noah and Shem. How? Because in two places56 57 we are told that the flood happened on the earth when Noah was 600 years old. The year after the flood would be Noah’s 601st year. Two years after the flood would be the year that Noah was 602 years old. In this year, then, Shem is 100 years old and the new son is born and is 1 year old.

1 based math usually counts the first year in question. In this case 1 based math works. The flood took two years. Noah’s 600 and 601st years. It was on the 27th day of the 2nd month in Noah’s 601st year when they came out of the ark.58 This is year 1 in 1 based math. Year 2 is Noah’s 602nd year. The same conclusion as just drawn.

Shem must have had his very first year 99 years earlier. To get Shem’s first year we take Noah’s 602nd year and subtract 99. ( 602 - 99 = 503 ) So Shem is born and has his first year in Noah’s 503rd year.

This is indeed after Noah’s 500th year" count=" but not exactly, and not deducible in any other way. It explains why Shem’s age is given relative to the flood dates.

Abraham’s Birth

Abraham’s original name was Abram. It was changed after the covenant was more firmly established between him and God. Abram’s father was Terah. Terah’s account begins at Genesis 11:26.

Genesis 11:26
26And Terah lived 70 years, and bore Abram, Nahor, and Haran.

Unlike other generations, there is no reason at this generation to think that the birth order is different than that listed, so the assumption is that this is the birth order, Abram, Nahor, and Haran.

Also, this account uses the keyword "after" to indicate that it is not year 70 that is in focus here, but the year 71. The first of Terah’s sons, Abram, must have been born in Terah’s 71st year.


The details that drive the chronology have all been covered. The following table summarizes the results of the math implied by each of the choices covered in this section.

Not mentioned in this table, but important anyway, is Noah;s flood. This flood happened in 6020 from Adam, and lasted into early 6021.

Though not mentioned, the choice of placing year 1 in Adam’s first year is an epoch selection. This is the starting epoch for all measurements of time relative to Adam.

Name Life Span At Fatherhood After Fatherhood Birth Year Last Year
Adam 93059 13060 80061 1 930
Seth 91262 10563 80764 130 1041
Enosh 90565 9066 81567 234 1138
Kenan 91068 7069 84070 1139 2048
Mahalalel 89571 6572 83073 2049 2943
Jared 96274 16275 80076 2944 3905
Enoch 36577 6578 30079 3906 4270
Methuselah 96980 18781 78282 4271 5239
Lamech 77783 18284 59585 5240 6016
Noah 95086 50087 450 5421 6370
Shem 600 10088 50089 5923 6522
Arphaxad 438 3590 40391 6523 6960
Shelah 433 3092 40393 6961 7393
Eber 464 3494 43095 7394 7857
Peleg 239 3096 20997 7858 8096
Reu 239 3298 20799 8097 8335
Serug 230 30100 200101 8336 8565
Nahor 148 29102 119103 8566 8713
Terah 205104 70105 135 8714 8918
Abraham 175106 100107 108 109 75 8784 8958


This page has attracted more attention than nearly any other on the Bible Time website. This is often the first page read by someone arriving from Google. I understand how Google works, and by the way, welcome.

About once a week I get email from someone who has only read this article and is objecting to this rendering of the Bible Chronology, mostly because they haven’t read the earlier articles in this series.

If you are really stunned, or think I’ve made any gross mistakes, then I suggest you read the earlier articles first.

Further Reading

"The Most Important Biblical Discovery of Our Time": William Henry Green and the Demise of Ussher’s Chronology. by Ronald L. Numbers is an article that I did not write that explains the history of the problems with the famous, but flawed, 4004 BC dating of creation. Important foundational document if you are serious about understanding Bible Chronology. I deal with Ussher's mistakes in the immediately previous article here.

A printed copy of this article was dropped on my desk by a student in Bible College who thought I might be interested. I was, you may be also. Ussher has been known wrong for over 150 years.

Once you’ve read that article, and if you still have questions, please write.

I’ll try and answer any specific questions you may have.

1 Genesis 5:5   
2 Genesis 5:3   
3 Genesis 5:4   
4 Genesis 5:8   
5 Genesis 5:6   
6 Genesis 5:7   
7 Genesis 5:11   
8 Genesis 5:9   
9 Genesis 5:10   
10 Genesis 5:14   
11 Genesis 5:12   
12 Genesis 5:13   
13 Genesis 5:17   
14 Genesis 5:15   
15 Genesis 5:16   
16 Genesis 5:20   
17 Genesis 5:18   
18 Genesis 5:19   
19 Genesis 5:23   
20 Genesis 5:21   
21 Genesis 5:22   
22 Genesis 5:27   
23 Genesis 5:25   
24 Genesis 5:26   
25 Genesis 5:31   
26 Genesis 5:29   
27 Genesis 5:30   
28 Genesis 9:29   
29 Genesis 5:32   
30 Genesis 7:6   
31 Genesis 7:11   
32 Genesis 9:28   
33 Genesis 11:10   
34 Genesis 11:10   
35 Genesis 11:11   
36 Genesis 11:12   
37 Genesis 11:13   
38 Genesis 11:14   
39 Genesis 11:15   
40 Genesis 11:16   
41 Genesis 11:17   
42 Genesis 11:18   
43 Genesis 11:19   
44 Genesis 11:20   
45 Genesis 11:21   
46 Genesis 11:22   
47 Genesis 11:23   
48 Genesis 11:24   
49 Genesis 11:25   
50 Genesis 11:32   
51 Genesis 11:26   
52 Genesis 11:12   
53 Genesis 4:25   
54 Genesis 4:26   
55 Genesis 5:29   
56 Genesis 7:6   
57 Genesis 7:11   
58 Genesis 8:13   
59 Genesis 5:5   
60 Genesis 5:3   
61 Genesis 5:4   
62 Genesis 5:8   
63 Genesis 5:6   
64 Genesis 5:7   
65 Genesis 5:11   
66 Genesis 5:9   
67 Genesis 5:10   
68 Genesis 5:14   
69 Genesis 5:12   
70 Genesis 5:13   
71 Genesis 5:17   
72 Genesis 5:15   
73 Genesis 5:16   
74 Genesis 5:20   
75 Genesis 5:18   
76 Genesis 5:19   
77 Genesis 5:23   
78 Genesis 5:21   
79 Genesis 5:22   
80 Genesis 5:27   
81 Genesis 5:25   
82 Genesis 5:26   
83 Genesis 5:31   
84 Genesis 5:29   
85 Genesis 5:30   
86 Genesis 9:29   
87 Genesis 5:32   
88 Genesis 11:10   
89 Genesis 11:11   
90 Genesis 11:12   
91 Genesis 11:13   
92 Genesis 11:14   
93 Genesis 11:15   
94 Genesis 11:16   
95 Genesis 11:17   
96 Genesis 11:18   
97 Genesis 11:19   
98 Genesis 11:20   
99 Genesis 11:21   
100 Genesis 11:22   
101 Genesis 11:23   
102 Genesis 11:24   
103 Genesis 11:25   
104 Genesis 11:32   
105 Genesis 11:26   
106 Genesis 25:7   
107 Genesis 17:17   
108 Genesis 21:5   
109 Romans 4:19