Genesis 5 & 11: Chronological-Theological Reflections

The numbers found in Genesis 5 & 11 display characteristics that indicate a complex and meticulous symbolic schematization operating at several levels. Because these numbers are so potent symbolically, unbelieving scholars have universally (as far as I know) treated them as artificial. Believers take them literally, but believers must also reflect on their meaning. Our purpose in this essay is to uncover what we can of their significance.

First of all, we notice that there are 10 generations from Adam to Noah, and also 10 generations from Noah to Abram:

Adam Noah

Seth Shem

Enosh Arpachshad

Kenan Shelah

Mahalalel Eber

Jared Peleg

Enoch Reu

Methuselah Serug

Lamech Nahor

Noah Terah

Japheth Nahor

Shem Abram

Ham Haran

This numerical scheme seems contrived, and that’s because it is indeed contrived. The question is: Who contrived it? Was it contrived by a “priestly redactor” late in the history of the kingdom of Judah, or even after the exile, who was simply trying to show that God superin-

tends history; or was it contrived by God Himself, the Playwrite of all history? For believers, the answer must be the latter.

This, however, is only the beginning. To help us consider these passages, we shall summarize the data in tabulations that follow. As regards Genesis 5, we are told how old each patriarch was at the time of the birth of his significant son, how many more years he lived, and then we are given the total of the years of his life. Moreover, in most cases, these numbers are given in a strangely elaborate form, which contrasts with the way numbers are ordinarily written in the Bible. Usually, large numbers in Hebrew are given in this form:

“And the years of the life of Levi were 7 & 30 & 100 years” (Ex. 6:16).

“And Moses was a son of 100 & 20 years when he died” (Dt. 34:7).

“A son of 16 years he was when he became king, and 50 & 2 years he reigned in Jerusalem” (2 Kings 15:2).

In these instances, drawn at random, we see that the word “years” appears only once, after all the numbers. In most instances in Genesis 5 & 11, however, the numbers are partially separated by the repeated term “years”; to wit:

“And Methuselah lived 7 & 80 years and 100 years and begat Lamech. And Methuselah lived after begetting Lamech 2 & 80 years and 700 years, and he begat sons and daughters. And all of the days of Methuselah were 9 & 60 years and 900 years, and he died” (Gen. 5:25-27).

This literary structure has the effect of creating several significant chains of numbers, which now follow:

Lifespans Numbers as Written in Hebrew

Adam 130+800=930 130 + 800 = 900 & 30

Seth 105+807=912 5 & 100 + 7 & 800 = 12 & 900

Enosh 90+815=905 90 + 15 & 800 = 5 & 900

Kenan 70+840=910 70 + 40 & 800 = 10 & 900

Mahalalel 65+830=895 5 & 60 + 30 & 800 = 95 & 800

Jared 162+800=962 62 & 100 + 800 = 62 & 900

Enoch 65+300=365 65 + 300 = 65 & 300

Methuselah 187+782=969 87 & 100 + 82 & 700 = 69 & 900

Lamech 182+595=777 82 & 100 + 95 & 500 = 77 & 700

Noah’s years are not given in this form. Genesis 5:32 says that “Noah was a son of 500 years and he begat Shem, Ham, and Japheth.” (According to Genesis 10:21, Japheth was the eldest, and according to Genesis 9:24, Ham was the youngest.) “Noah was a son of 600 years when the flood put waters on the earth” (Gen. 7:6).

Also, Genesis 9:28-29 says that Noah lived 350 years after the Flood, for a total of 950 years, using this form:

Noah After Flood: 300 years & 50 years

Total: 900 years & 50 years

Let us notice a couple of significant features of this data so far. First, the text says that Adam was 130 years

old when he begat Seth; it does not say that he was 30 years & 100 years old. This contrasts with every other item in the list. Why this is so is unclear to me.

Second, in the cases of Adam and Noah, the total life span is given in reversed literary order from the rest; in their cases alone the number of centuries is given first, and then the remainder of years. This seems to link the two men as progenitors of humanity.

Let us now consider the post-flood patriarchs in Genesis 11. Here the information is simpler, in that we are not given the total number of years each patriarch lived; we have to figure that out for ourselves from the data provide (age at birth of significant son+remaining years):

Lifespans Numbers as Written In Hebrew

Shem 100+500(=600) 100 + 500

Arpachshad 35+403(=438) 35 + 3 & 400

Shelah 30+403(=433) 30 + 3 & 400

Eber 34+430(=464) 34 + 30 & 400

Peleg 30+209(=239) 30 + 9 & 200

Reu 32+207(=239) 32 + 7 & 200

Serug 30+200(=230) 30 + 200

Nahor 29+119(=148) 29 + 19 & 100

Terah 70(+135)=205 70 (+135) = 5 & 200

In all these cases, the century years follow the extra years.

Now, this peculiar way of stating years is also used sometimes in the rest of Genesis for the patriarchs, and for a couple of other significant periods in the Bible; to wit:

Abram enters land (Gen. 12:4) 5 years & 70 years

Abram receives Ishmael (Gen. 16:16) 80 years & 6 years

Covenant of circumcision (Gen. 17:1) 90 years & 9 years

(contrast 17:24) 99 years

Lifespan of Sarah (Gen. 23:1) 100 & 20 & 7

Lifespan of Abraham (Gen. 25:7) 100 & 70 & 5

Lifespan of Ishmael (Gen. 25:17) 100 & 30 & 7

Lifespan of Isaac (Gen. 35:28) 100 & 80

Lifespan of Jacob (Gen. 47:28) 7 & 40 & 100

Lifespan of Joseph (Gen. 50:22, 26) 110; 110 (note contrast)

Sojourn in Egypt (Ex. 12:40, 41) 30 & 400; 30 & 400

Lifespan of Aaron (Num. 33:9) 123 (note contrast)

Lifespan of Moses (Dt. 34:7) 120 (note contrast)

Lifespan of Joshua (Josh. 24:29) 110 (note contrast)

Exodus to Temple (1 Ki. 6:1) 80 & 400

What accounts for this oddity of expression? One thing we can notice is that outside of the patriarchs, the only other two occurances of this form are found in connection with the exodus from Egypt and the building of the Temple; or perhaps more pointedly the building the Tabernacle (representing Israel and the world) and the Temple (representing the same). The last patriarch whose years are recounted in this way is Israel himself.

The years of the patriarchs are recounted in this elaborate manner from Adam to Noah and Shem, from Shem to Eber, and from Eber (Hebrew) to Jacob (Israel). The period from Abraham the Hebrew to the Exodus is recounted this way, as is the period from the Exodus to the Temple. Thus, from creation to the Temple this extended form is used.

The only person whose lifespan is recounted this way who does not seem to belong in the list is Ishmael, but when we consider that Ishmael represents the entire converted Gentile world, sons of Egyptian women who recognize Abraham as father, we can see a possibly reason why his lifespan is signified by this lengthened form. (On Ishmael’s conversion, see Genesis 21:20, “God was with the lad,” as explained by the same phrase two verses later in 21:22.)

This lengthened formula of dating is used in the patriarchs for the birth of the significant son (Gen. 5 & 11), and for certain events in the life of Abraham: his entrance into the land (the microcosmic world), the birth of Ishmael (a new first-Adam, the portion of humanity that is saved and led), and the promise of Isaac (a promised last-Adam, the portion of humanity, ultimately Christ, that saves and leads).

Finally, in the cases of Adam and Noah, the centuries come first and then the remaining years. This is also true of Abraham and his immediate family (Sarah, Ishmael, Isaac). Thus, I suggest Abraham is presented as a Third Adam, a new progenitor.

Fascinating Numbers

The style of writing we have been examining has the effect of isolating the hundreds from the rest of a number. Thus, the number 782 becomes 700 + 82. This causes us to reflect on these numbers in a more precise way than we might: We don’t simply ask what the number 782 might signify, or what its factors might be; but we also ask what the numbers 700 and 82 might mean and what their factors might be. When we do this, something odd turns up: Virtually every number in these lists ends in either 0, 2, 5, 7, or 9. Moreover, it can easily be shown that every number is composed of 10s, 5s, and 7s. The texts of Genesis 5 & 11 provide us with 38 numbers (not counting hundreds). If we were to take 18 people out of the population at random, and take the year their first child was born, the number of additional years they lived, and their total lifespan, what are the odds that all of these numbers would be composed of 10s, 5s, and 7s?

You can look back at the list and see these numbers. First comes Adam, with a 30. Then comes Seth, with a 5 (105) and a 7 (807) for a total of 12 (912). The numbers in Seth’s life provide a clue for understanding certain other numbers, as we shall see. Here are the rest:

Enosh 90, 15, 5

Kenan 70, 40, 10

Mahalalel 5, 30, 95

Jared 62 (50+[5+7])

Enoch 65

Methuselah 87, 82 (70+[5+7]), 69 (50+[5+7]+7)

Lamech 82 (70+[5+7]), 95, 77

Notice that the more complex numbers are still composed of fives and sevens. 62 is built from 50, and 82 is built from 70.

5+7=12, and 12 is certainly a significant number. It appears first with Seth (105+807=912). Jared’s 62 is 50+12; and Methuselah’s 82 is 70+12. Methuselah’s 69 is 50+12+7.

Certain other numbers also are composed of 5 & 7. For instance, Mahalalel lived “5 years and 60 years” and begat Jared, while Enoch lived “65 years” and begat Methuselah. Mahalalel comes first, and thus explains 65 to us. 65 is (5×12)+5; or (5x[5+7])+5.

The number 95, which occurs twice in the series, might be seen simply as a multiple of 5, or as (7×10)+(5×5).

When we turn to Genesis 11, we have fewer numbers, but they are equally curious. Here again are the numbers as given in the text, this time including the hundreds:

Shem 100, 500

Arpachshad 35, 3 + 400

Shelah 30, 3 + 400

Eber 34, 30 + 400

Peleg 30, 9 + 200

Reu 32, 7 + 200

Serug 30, 200

Nahor 29, 19 + 100

Terah 70, 5 + 200

At first glance, we are struck by the predominance of 3, itself a very significant number in the Bible: the number of the preliminary crisis in the middle of the week (3d day, 3d week, 3d hour, 3d year, etc.). At second glance, however, most of these 3s are visibly and inescapably linked with 4s, to make symbolic 7s. Notice these numbers from the list:

3 + 400 (twice)

30 + 400


We should not fail to see the obvious allusion to 7 here.

Moreover, Arpachshad’s 35 years are 5×7. With Terah we have a 70 and a 5. Peleg’s 9 seems an anomaly, but the next Patriarch, Reu, has the same total number of years, but with a 2 and a 7 instead. Reu’s 32 seems to be 20+5+7. Nines show up again with Nahor, but here again these nine only conceal 5s and 7s:

29 = 10+5+7+7

19 = 5+7+7

Now, it is amazing enough that out of such a small population sampling, we should find virtually all the numbers ending in 0, 2, 5, 7, & 9. It is even more amazing to find that all the 2s and 9s reduce to 7s in such a way that the remainder of the number is also significant in terms of this system of 5s and 7s (see Note below). It is even more amazing to find that almost all of the few 3s and 4s that do crop up are visibly paired, forming 7s of some sort.

But what is yet more amazing is that this system continues on in Genesis and the rest of the Pentateuch, with the addition of the number 3 (which we have seen creeping into Genesis 11). Consider these lifespans:

Sarah 100 & 20 & 7

Abraham 100 & 70 & 5

Ishmael 100 & 30 & 7

Isaac 100 & 80

Jacob 7 & 40 & 100

Joseph 110

Sojourn 430 years

Levi 137 (Ex. 6)

Kohath 133 (Ex. 6)

Amram 137 (Ex. 6)

Aaron 123

Moses 120

Joshua 110

[NOTE: Of course, any number above 2 and 9 themselves can be reduced to 5s and 7s and 10s. For instance, 99 is 7+7+5+80. What is significant about the 2s and 9s in the Genesis 5 chronology is that once we’ve subtracted the 7s and 5s necessary to get a round number (divisible by 10), that number itself is either 50 or 70. The only such numbers are 62, 69, and 82.]

The occurrence of these numbers 5, 7, 10, and 12 invites us to consider the genealogies themselves.

The fifth from Noah is Eber, who is directly tied to the witness of Shem in Genesis 10:21, and whose name is heard in the term “Hebrew.” The Hebrews are the focussed continuance of the religious calling of Shem (Gen. 9:26-27).

The fifth from Adam is Mahalalel. What is significant about him is that he died in the year a.m.1290, which is 366 years before the Flood. Considering that Enoch lived

365 years, we are entitled to see the number 366 as significant. Mahalalel’s death began a countdown, a Great Year of grace, which was extended by one further year, before the Flood. (Also, it may be noted that 1290 is 3×430, and recurs with exodus-connotations in Daniel 12:11.)

The seventh from Adam is Enoch, who walked with God after 365 years and was taken by God without passing through earthly death. The fourteenth from Adam is Eber, whose name is preserved in the word Hebrew. The twenty-first from Adam is Isaac, the miracle son.

The seventh from Noah is Reu. What is significant about him is only indirectly revealed. Let’s go back: The seventh from Adam in the line of Cain is the murderous polygamistic poet Lamech–quite a contrast to Enoch. Reu also contrasts with the seventh from Noah in this way: Eber had two sons: Peleg and Joktan. The Joktanites were involved in Babel (Gen. 10:30 + 11:2). Genesis 10:26-29 lists 13 sons of Joktan, who moved east with him and were involved with Babel. By way of contrast, we are only given one son of Peleg by name: Reu. The Hebrew Reu continued the true line when the Hebrew Joktanites apostatized. Thus there was judgment and separation in the 3rd generation from Eber, the 7th generation from Noah.

The tenth from Adam is Noah; the tenth from Noah is Terah, father of Abram. Since the second chronology starts with Shem, we can also see that Abram is tenth from Shem. The fifteenth from Adam is Peleg, in whose days the earth was divided at the tower of Babel. The twentieth from Adam is Abram.

The twelfth from Adam is Arpachshad, born after the Flood. The twelfth from Noah is Isaac, the miracle son born after the circumcision. (The coming of circumcision in Genesis 17 should be regarded as an historical event analogous to the Flood or to the coming of the Spirit on Pentecost; it created a new world.) The twelfth from Shem is Israel.

Now, if we consider the other names on the list, which have no numerical association with 5, 7, 10, or 12, we find that nothing significant is said about any of them:




Lamech, father of Noah (an exception: he uttered a prophecy)




James Jordan is scholar-in-residence at Theopolis. This article originally appeared at Biblical Horizons