How many in Israel did God say had not bowed their knees to Baal?

Answer: 7,000

God told Elijah He had reserved seven thousand in Israel whose knees had not bowed to Baal.

“Nevertheless, I have reserved seven thousand in Israel—all whose knees have not bowed to Baal and whose mouths have not kissed him.””— 1 Kings 19:18 (BSB)