1 Peter 1:2 - Coke's Commentary on the Holy Bible

Elect according to the foreknowledge, &c.— Dr. Heylin reads this verse, Whom God the Father, according to his foreknowledge, has elected and sanctified by the Spirit, that they should obey Jesus Christ, and be sprinkled with his blood. And he observes, that as the Christian church succeeded to the Jewish, it has the same titles of elect and sanctified; that is, consecrated to God, being separated from the rest of the world by the peculiar illumination of the Holy Spirit. The source of their redemption by Jesus Christ was the love of God the Father, who designed before the coming of Christ, not only to call the Jews, but also to take unto himself a chosen people from among the Gentiles. It was not owing to the merit of those Gentiles, or granted as a reward for their works of righteousness antecedent to their conversion, that the gospel was sent among them; but to the foreknowledge and love of God the Father. By the phrase the sprinkling of the blood the apostle may refer to the Jewish ceremony of sprinkling the blood of the sacrifices upon the people; whereby they entered into covenant with God.