“Then Abraham fell on his face and laughed and said to himself, ‘Shall a child be born to a man who is a hundred years old? Shall Sarah, who is ninety years old, bear a child?’” (Gen. 17:17). Many have assumed that because Genesis 11:26 states, “Now Terah lived seventy years, and begot Abram, Nahor, and Haran,” that Abram (also known as Abraham; cf. Genesis 17:5) was Terah’s firstborn, and that he was born when Terah was 70. The truth is, however, according to the Bible, Abraham was not born for another 60 years. When Stephen was delivering his masterful sermon recorded in Acts 7, he stated that Abraham moved to the land of Palestine “after the death of his father [Terah—EL]” (7:4). Yet if Terah was 205 years old when he died (Genesis 11:32), and Abraham departed Haran when he was 75 (Genesis 12:4), then Terah was 130, not 70, when Abraham was born. In light of this information Henry Morris and John Whitcomb have aided us in better understanding Genesis 11:26 by paraphrasing it as follows: “And Terah lived seventy years and begat the first of his three sons, the most important of whom (not because of age but because of the Messianic line) was Abram” (1961, p. 480).
While the Mesopotamian city of Ur dates back almost 3000 years the city of Chaldees did not exist before the 8th Century. The word Chaldes is actually “chesdim” and is the Aramaic word for that territory. Aramaic came into use in the first millennium BCE. So the supposed genealogy of Abraham is a late invention. He could not have existed 3000- 4000 years ago and in fact like the rest of the major figures of the Bible he never existed at all. The story of Abraham is a carefully designed historical fiction which is a myth placed in a somewhat historical setting, the same as the gospels. Notice the chiastic structure of the story of Abraham below:
The Abraham Cycle (Genesis 11-25)
A. Genealogical framework (11:10-32)
B. Migration from Haran; separation from Nahor (([12:1-3] 12:4-5a)
C. Building of altars; land promises (12:5b-9 [13:14-18])
D, "Wife-sister episode (12:10-20)
E. Sodom episode and rescue of Lot (13:1-13)
F. Border agreement with Lot (13:1-13)
G. Covenant of sacrifice ((15:1-21)
X Expulsion and rescue of Hagar (16:1-16)
G. Covenant of circumcision (17:1-27)
F. Sodom episode and rescue of Lot (18:1-19:38)
E. Border agreement with Abimelech (21:22-34)
D. Wife-sister episode (20:1-18)
C. Building of altar (22:6) land secured (22:17b; 23:1-20)
B. Migration to Haran; reunification with Nahor’s line (24:1-67)
A. Genealogical framework ([22:20-24] 25:1-18])
The ages of Abraham and Sarah and the magical birth of Isaac are a clue from from the biblical writers that the story is not to be taken literally. However many Christians think they are are forced to believe this ridiculous story because whoever wrote Galatians mentioned Abraham. The author also says the story is a allegory, a statement that has had Bible “scholars” arguing for 1800 years.