Zechariah 1:8-10

8I saw by night, and behold, a man riding on a red horse, and it stood among the myrtle trees in the hollow; and behind him were horses: red, sorrel, and white.

9Then I said, “My lord, what are these?” So the angel who talked with me said to me, “I will show you what they are.”

10And the man who stood among the myrtle trees answered and said, “These are the ones whom the Lord has sent to walk to and fro throughout the earth.”