Zechariah 6:2

Again I lifted up my eyes, and saw, and behold, four chariots came out from between two mountains; and the mountains were mountains of bronze.

In the third chariot were white horses. In the fourth chariot were dappled horses, all of them powerful.

Then I asked the angel who talked with me, “What are these, my lord?”

The angel answered me, “These are the four winds of the sky, which go out from standing before the Lord of all the earth.