Thematic Bible: The appearance of blood

It happened in the morning about the time of offering the sacrifice, that behold, water came by the way of Edom, and the country was filled with water. Now all the Moabites heard that the kings had come up to fight against them. And all who were able to put on armor and older were summoned and stood on the border. They rose early in the morning, and the sun shone on the water, and the Moabites saw the water opposite them as red as blood.