20 It happened after these things, that it was told Abraham, saying, "Behold, Milcah, she also has borne children to your brother Nahor:
*Minor differences ignored. Grouped by changes, with first version listed as example.
Behold, Milcah, she hath also borne children unto thy brother - This short history seems introduced solely for the purpose of preparing the reader for the transactions related Genesis 24, and to show that the providence of God was preparing, in one of the branches of the family of Abraham, a suitable spouse for his son Isaac.
And it came to pass, after these things,.... Abraham's taking his son Isaac to the land of Moriah, building an altar on one of the mountains there, and laying him on it with an intention to sacrifice him, and offering of a ram in his stead, and the return of them both to Beersheba:
that it was told Abraham; by some person very probably who was lately come from those parts where the following persons lived; though Jarchi suggests this was told him by the Lord himself, and while he was thinking of taking a wife for Isaac of the daughters at Aner, or Eshcol, or Mamre; and to prevent which the following narration was given him:
saying, behold Milcah, she hath also borne children unto thy brother Nahor; as Sarah, supposed to be the same with Iscah, a daughter of Haran, had borne a son to him, and whom he had received again as from the dead; so Milcah, another daughter of Harsh, had borne children to his brother Nahor, whom he had left in Ur of the Chaldees, when he departed from thence, and who afterwards came and dwelt in Haran of Mesopotamia; see Genesis 11:27.
This chapter ends with some account of Nahor's family, who had settled at Haran. This seems to be given for the connexion which it had with the church of God. From thence Isaac and Jacob took wives; and before the account of those events this list is recorded. It shows that though Abraham saw his own family highly honoured with privileges, admitted into covenant, and blessed with the assurance of the promise, yet he did not look with disdain upon his relations, but was glad to hear of the increase and welfare of their families.
Descendants of Nahor. - With the sacrifice of Isaac the test of Abraham's faith was now complete, and the purpose of his divine calling answered: the history of his life, therefore, now hastens to its termination. But first of all there is introduced quite appropriately an account of the family of his brother Nahor, which is so far in place immediately after the story of the sacrifice of Isaac, that it prepares the way for the history of the marriage of the heir of the promise. The connection is pointed out in Genesis 22:20, as compared with Genesis 11:29, in the expression, "she also." Nahor, like Ishmael and Jacob, had twelve sons, eight by his wife Milcah and four by his concubine; whereas Jacob had his by two wives and two maids, and Ishmael apparently all by one wife. This difference with regard to the mothers proves that the agreement as to the number twelve rests upon a good historical tradition, and is no product of a later myth, which traced to Nahor the same number of tribes as to Ishmael and Jacob. For it is a perfectly groundless assertion or assumption, that Nahor's twelve sons were the fathers of as many tribes. There are only a few names, of which it is probable that their bearers were the founders of tribes of the same name. On Uz, see Genesis 10:23. Buz is mentioned in Jeremiah 25:23 along with Dedan and Tema as an Arabian tribe; and Elihu was a Buzite of the family of Ram (Job 32:2). Kemuel, the father of Aram, was not the founder of the Aramaeans, but the forefather of the family of Ram, to which the Buzite Elihu belonged, - Aram being written for Ram, like Arammim in 2-Kings 8:29 for Rammim in 2-Chronicles 22:5. Chesed again was not the father of the Chasdim (Chaldeans), for they were older than Chesed; at the most he was only the founder of one branch of the Chasdim, possibly those who stole Job's camels (Knobel; vid., Job 1:17). Of the remaining names, Bethuel was not the founder of a tribe, but the father of Laban and Rebekah (Genesis 25:20). The others are never met with again, with the exception of Maachach, from whom probably the Maachites (Deuteronomy 3:14; Joshua 12:5) in the land of Maacah, a small Arabian kingdom in the time of David (2-Samuel 10:6, 2-Samuel 10:8; 1-Chronicles 19:6), derived their origin and name; though Maachah frequently occurs as the name of a person (1-Kings 2:39; 1-Chronicles 11:43; 1-Chronicles 27:16).
This is recorded here, To show that tho' Abraham saw his own family highly dignified with peculiar privileges, yet he did not look with contempt upon his relations, but was glad to hear of the increase and prosperity of their families. To make way for the following story of the marriage of Isaac to Rebekah, a daughter of this family.
*More commentary available at chapter level.