2nd Kings 3:9

6 And king Jehoram went out of Samaria at that time, and mustered all Israel.

7 And he went and sent to Jehoshaphat the king of Judah, saying, The king of Moab hath rebelled against me: wilt thou go with me against Moab to battle? And he said, I will go up: I am as thou art, my people as thy people, my horses as thy horses.

8 And he said, Which way shall we go up? And he answered, The way of the wilderness of Edom.

9 So the king of Israel went, and the king of Judah, and the king of Edom; and they made a circuit of seven days` journey: and there was no water for the host, nor for the beasts that followed them.

10 And the king of Israel said, Alas! for Jehovah hath called these three kings together to deliver them into the hand of Moab.

11 But Jehoshaphat said, Is there not here a prophet of Jehovah, that we may inquire of Jehovah by him? And one of the king of Israel`s servants answered and said, Elisha the son of Shaphat is here, who poured water on the hands of Elijah.

12 And Jehoshaphat said, The word of Jehovah is with him. So the king of Israel and Jehoshaphat and the king of Edom went down to him.