Genesis 25:7

“…God Himself as an adequate engager and faithful promiser, in that He promised to Abraham that “in his seed should be blest all nations of the earth;” and that out of the womb of Rebecca “two peoples and two nations were about to proceed,”—of course those of the Jews, that is, of Israel; and of the Gentiles, that is…” — editor's note: This promise may be said to have been given “to Abraham,” because (of course) he was still living at the time; as we see by comparing Gen. xxi. 5 with xxv. 7…

“To Isaac himself, in his sixtieth year, were born twin-sons, Esau and Jacob, whom Rebecca his wife bore to him, their grandfather Abraham, who died on completing a hundred and seventy years, being still alive, and reckoning his hundred and sixtieth year.” — editor's note: In the Hebrew text, Gen. xxv. 7, a hundred and seventy-five years.