1 Kings 19:15-17

19:15 The Lord said to him, “Go back the way you came and then head for the Desert of Damascus. Go and anoint Hazael king over Syria. 19:16 You must anoint Jehu son of Nimshi king over Israel, and Elisha son of Shaphat from Abel Meholah to take your place as prophet. 19:17 Jehu will kill anyone who escapes Hazael’s sword, and Elisha will kill anyone who escapes Jehu’s sword.