I Kings 19:1-3

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