Genesis 22:20

“And it came to pass, after these things, etc.] 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…”

“22:20-24 A report came from the east that Abraham’s brother Nahor (see 11:27-29) was flourishing. The actors in the following narrative are introduced here. 22:20 Milcah, Nahor’s wife, was also his niece (see 11:29).”