'White' in the Bible

I looked out in the night and saw a man riding on a red horse. He was standing among the myrtle trees in the valley. Behind him were red, sorrel, and white horses.

the third chariot white horses, and the fourth chariot dappled horses—all strong horses.

The one with the black horses is going to the land of the north, the white horses are going after them, but the dappled horses are going to the land of the south.”