Galatians 3:8 - Coke's Commentary on the Holy Bible

In thee shall all nations be blessed.— It may perhaps be asked, "What evidence there is that this promise meant the conversion of Jews and Gentiles to Christianity, rather than converting the Gentiles to Judaism, and so blessing them with a participation of the privileges originally granted to the natural seed of Abraham?"—But, besides what the Apostle afterwards says for clearing up this point, it may be answered,—that the Mosaic economy was so constituted, that it could never be universal; and that when it was considered what sort of a person Christ in fact was, there would appear reason to believe that this promise referred to him, separate from the authority of the Apostle in asserting it, and however dubious soever the sense of the prophesy might appear till it was illustrated by the event. See Genesis 12:3; Genesis 18:18; Genesis 22:18.