Zechariah 6:3-6

3the third by white horses, and the fourth by powerful dappled-gray horses.

4“And what are these, my lord?” I asked the angel who was talking with me.

5The angel replied, “These are the four spirits of heaven who stand before the Lord of all the earth. They are going out to do his work.

6The chariot with black horses is going north, the chariot with white horses is going west, and the chariot with dappled-gray horses is going south.”