2 Kings 3:7-9

Complete Jewish Bible

⁷ He also went and sent this word to Y’hoshafat king of Y’hudah: “The king of Mo’av has rebelled against me. Will you join me in attacking Mo’av?” He answered, “I will join in the attack — I’m with you all the way; think of my people and horses as yours. ⁸ Which route should we take?” he added. “The road through the desert of Edom,” answered Y’horam.

⁹ So the king of Isra’el set out, along with the king of Y’hudah and the king of Edom. After a roundabout journey of seven days, there was no water for either the army or the animals following them.