Genesis 21:5

“…are generate, ‘To Job there came to be seven sons and three daughters,’ and, ‘Abraham was an hundred years old when there came to be to him Isaac his son;’ and Moses said, ‘If to any one there come to be sons.’” — editor's note: Gen. xxi. 5.

“…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…