2nd Kings 3:6

3 But still he did the same sins which Jeroboam, the son of Nebat, did and made Israel do; he went on in them.

4 Now Mesha, king of Moab, was a sheep-farmer; and he gave regularly to the king of Israel the wool from a hundred thousand lambs and a hundred thousand sheep.

5 But when Ahab was dead, the king of Moab got free from the authority of the king of Israel.

6 At that time, King Jehoram went out from Samaria and got all Israel together in fighting order.

7 And he sent to Jehoshaphat, king of Judah, saying, The king of Moab has got free from my authority: will you go with me to make war on Moab? And he said, I will go with you: I am as you are, my people as your people, and my horses as your horses.

8 And he said, Which way are we to go? And he said in answer, By the waste land of Edom.

9 So the king of Israel went with the king of Judah and the king of Edom by a roundabout way for seven days: and there was no water for the army or for the beasts they had with them.