1 Kings 19:1-3, 13-14

Now Ahab told Jezebel all that Elijah had done, and how he had killed all the prophets with the sword. Then Jezebel sent a messenger to Elijah, saying, “So may the gods do to me and even more, if I do not make your life as the life of one of them by tomorrow about this time.” And he was afraid and arose and ran for his life and came to Beersheba, which belongs to Judah, and left his servant there.

When Elijah heard it, he wrapped his face in his mantle and went out and stood in the entrance of the cave. And behold, a voice came to him and said, “What are you doing here, Elijah?” Then he said, “I have been very zealous for the LORD, the God of hosts; for the sons of Israel have forsaken Your covenant, torn down Your altars and killed Your prophets with the sword. And I alone am left; and they seek my life, to take it away.”