2 Kings 3:26-27

When the king of Moab saw that the battle was too fierce for him, he took with him 700 men who drew swords, to break through to the king of Edom; but they could not. Then he took his oldest son who was to reign in his place, and offered him as a burnt offering on the wall. And there came great wrath against Israel, and they departed from him and returned to their own land.