1 Kings 19:8-9

Amplified Bible

⁸ So he got up and ate and drank, and with the strength of that food he traveled forty days and nights to Horeb (Sinai), the mountain of God.

Elijah at Horeb

⁹ There he came to a cave and spent the night in it; and behold, the word of the Lord came to him, and He said to him, “What are you doing here, Elijah?”