So the king of Israel, the king of Judah, and the king of Edom set out. After they had travelled their indirect route for seven days, they had no water for the army or the animals with them.
So he took his firstborn son, who was to become king in his place, and offered him as a burnt offering on the city wall. Great wrath was on the Israelites, and they withdrew from him and returned to their land.
When the king of Moab saw that the battle was too fierce for him, he took seven hundred swordsmen with him to try to break through to the king of Edom, but they could not do it.