And there he went into a cave, and spent the night in that place; and behold, the word of the LORD came to him, and He said to him, "What are you doing here, Elijah?"
1 Kings 19:9
Surrounding context
19:8 So he arose, and ate and drank; and he went in the strength of that food forty days and forty nights as far as Horeb, the mountain of God.
19:9 And there he went into a cave, and spent the night in that place; and behold, the word of the LORD came to him, and He said to him, "What are you doing here, Elijah?"
19:10 So he said, "I have been very zealous for the LORD God of hosts; for the children of Israel have forsaken Your covenant, torn down Your altars, and killed Your prophets with the sword. I alone am left; and they seek to take my life."