2 Kings 3:20-22

20The next day at about the time when the morning sacrifice was offered, water suddenly appeared! It was flowing from the direction of Edom, and soon there was water everywhere.

21Meanwhile, when the people of Moab heard about the three armies marching against them, they mobilized every man who was old enough to strap on a sword, and they stationed themselves along their border.

22But when they got up the next morning, the sun was shining across the water, making it appear red to the Moabites—like blood.