Romans 9:25-27

25Just as He says in [the writings of the prophet] Hosea: “I will call those who were not My people, ‘My people,’ And [I will call] her who was not beloved, ‘beloved.’ ”

26“And it shall be that in the place where it was said to them, ‘you are not My people,’ There they shall be called sons of the living God.”

27And Isaiah calls out concerning Israel: “Though the number of the sons of Israel be like the sand of the sea, it is only the remnant [a small believing minority] that will be saved [from God’s judgment];