Zechariah 1:8-10

8I saw by night, and behold a man riding upon a red horse, and he stood among the myrtle trees that were in the bottom; and behind him were there red horses, speckled, and white.1

9Then said I, O my lord, what are these? And the angel that talked with me said unto me, I will shew thee what these be.

10And the man that stood among the myrtle trees answered and said, These are they whom Yhwh hath sent to walk to and fro through the earth.