Zechariah 6:5-7

The angel answered, “These are the four winds of heaven, which originate with the Master of the whole earth. The black horses are headed north with the white ones right after them. The dappled horses are headed south.” The powerful horses galloped out, bursting with energy, eager to patrol through the earth. The Messenger-Angel commanded: “On your way! Survey the earth!” and they were off in every direction.