1 Kings 19:18

“And what was God’s answer to him? “I have reserved for myself seven thousand who have not bowed the knee to Baal.””

Paul directly references Elijah's story to illustrate God's remnant.

“This is what the Lord says: “As when juice is still found in a cluster of grapes and people say, ‘Don’t destroy it, there is still some good in it,’ so will I do in behalf of my servants; I will not destroy them all. I will bring forth descendants from Jacob, and from Judah those who will possess my mountains; my chosen people will inherit them, and there my servants will live.”

Shares the theme of God preserving a remnant.

“Isaiah cries out concerning Israel: “Though the number of the Israelites be like the sand by the sea, only the remnant will be saved.”

Illustrates the concept of a faithful remnant within a larger apostate group.

“Yet you have a few people in Sardis who have not soiled their clothes. They will walk with me, dressed in white, for they are worthy.”

Shows the concept of a small group of faithful believers within a larger, compromised church.

“Nevertheless, God’s solid foundation stands firm, sealed with this inscription: “The Lord knows those who are his,” and, “Everyone who confesses the name of the Lord must turn away from wickedness.”

Highlights God's knowledge and preservation of his own people.