Zechariah 6:5-7

Amplified Bible

⁵ The angel answered me, “These are the four spirits of the heavens, which go out after presenting themselves before the Lord of all the earth,^{(A) 6} with the chariot with the black horses going toward the north country; then the one with the white horses follows after them [because there are two northern powers to overcome], and the chariot with the dappled horses goes toward the south country.” ⁷ When the strong horses went out, they were eager to patrol the earth. And the Lord said, “Go, patrol the earth.” So they patrolled the earth [watching and protecting it].