Zechariah 6:1-4

And I turned, and lifted up mine eyes, and looked, and, behold, there came four chariots out from between two mountains; and the mountains were mountains of brass.

In the first chariot were red horses; and in the second chariot black horses;

And in the third chariot white horses; and in the fourth chariot grisled and bay horses.

Then I answered and said unto the angel that talked with me, What are these, my lord?