who in time past were no people, but now are the people of God: who had not obtained mercy, but now have obtained mercy.
Adapted from Hos 1:9-10; Hos 2:23. Peter plainly confirms Paul, who quotes the passage as implying the call of the Gentiles to become spiritually that which Israel had been literally, "the people of God." Primarily, the prophecy refers to literal Israel, hereafter to be fully that which in their best days they were only partially, God's people.
Dearly beloved, I beseech you,.... The apostle, from characters of the saints, and which express their blessings and privileges, with great beauty, propriety, and pertinency, passes to exhortations to duties; he addresses the saints under this affectionate appellation, "dearly beloved", to express his great love to them, and to show that what he was about to exhort them to sprung from sincere and hearty affection...
10 Which in time past were not a people He brings for confirmation a passage from Hosea, and well accommodates it to his own purpose. For Hosea, after having in God’s name declared that the Jews were repudiated, gives them a hope of a future restoration.