So Abraham returned to his young men, and they arose and went together to Beersheba. And Abraham lived at Beersheba.
19. And they rose up, and went together to Beer-sheba . Moses repeats, that Abraham, after having passed through this severe and incredible temptation, had a quiet abode in Beersheba. This narration is inserted, together with what follows concerning the increase of Abraham’s kindred, for the purpose of showing that the holy man, when he had been brought up again from the abyss of death...
Abraham's obedience was graciously accepted; but this was not all: here we have it recompensed, abundantly recompensed, before he stirred from the place; probably while the ram he had sacrificed was yet burning God sent him this gracious message, renewed and ratified his covenant with him. All covenants were made by sacrifice, so was this by the typical sacrifices of Isaac and the ram.
Commenting on Genesis 22:15-19
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...