Romans 9:27-29

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];

28For the Lord will execute His word upon the earth [He will conclude His dealings with mankind] completely and without delay.”

29It is as Isaiah foretold, “If the Lord of Hosts had not left us seed [future generations from which a believing remnant of Israelites came], We would have become like Sodom, and would have resembled Gomorrah [totally rejected and destroyed]!”