And confirmed the same unto Jacob - literally, “caused it to stand;” that is, he made it fast or secure. He renewed it, commanding the same things; making the same promises; and pledging himself for its fulfillment in the same manner. Genesis 28:10-15.
For a law - For an established or settled ordinance, for a rule by which future things were to be regulated: that is, they would occur according to that promise, and be conformed to it. It was, as it were, a rule which God prescribed for himself in regard to his own future conduct.
And to Israel ... - Another name for Jacob, Genesis 32:28.