Commentaire sur La Genèse 22:23

ובתואל ילד את רבקה AND BETHUEL BEGAT REBECCA — The entire genealogical record is given only for the sake of this verse (i. e. to lead up to this verse).

AND BETHUEL BEGOT REBEKAH. The verse does not mention Laban, even though he was older than Rebekah, for its intent is only to mention the eight children which Milcah bore to Nahor.³⁹⁷And Bethuel is already the eighth: Uz, Buz, Kemuel, Chesed, Hazo, Pildash, Jidlaph, Bethuel. Hence the verse does not intend to mention the children of Bethuel, namely, Laban. Rebekah, his daughter, however, was mentioned for the reason explained in the text. However, Rebekah is mentioned since the entire chapter is written to make known her genealogy.
Kemuel the father of Aram.³⁹⁸Verse 21 here. Aram is mentioned only in order to make known the identity of Kemuel as Aram was a more important man than his father. Perhaps, also, there was another Kemuel in their generation. Hence [Scripture identifies Kemuel by saying that] he was the father of Aram.

ובתואל ילד את רבקה, the person relating all this to Avraham added that Betuel, a son of Nachor’s proper wife, sired Rivkah. The meaning of the message was that there had been born in his own family a girl who would be a suitable wife for Avraham’s son so that he would not have to look for such a wife among the Canaanites surrounding him.

ובתואל ילד את רבקה, Laban is not mentioned as the focus of the story is Rivkah. The whole paragraph is recorded only on account of Rivkah.

ובתואל ילד את רבקה, “and Bethuel sired Rivkah.” The Torah fails to mention Lavan at this stage, so that we have no clue whether he was older than Rivkah. The only reason for writing this paragraph at all was to inform us about the birth of Rivkah.