1:8 a man. The “man” is clearly the same as “the angel of the LORD” (Zechariah 1:11), and thus can be identified as none other than the pre-incarnate Christ, the second person of the Trinity. He continues to communicate with Zechariah in all the visions, guiding him in understanding their messages.
1:8 red horse. The “red horse” suggests conflict and war (compare Revelation 6:4) which eventually will be visited upon the nations that have been abusing the people of God, as well as on the apostates among Israel. In the company led by the Angel—evidently a part of the angelic host of heaven—were more red horses, but also some white and some speckled. Presumably these suggest there is mercy mixed with judgment in the mission of the heavenly army.
1:8 myrtle trees. The “myrtle trees” must represent the people of Israel in context, for the Angel had come to stand in their midst. The Hebrew for “myrtle” is the masculine equivalent of Hadassah, which was the Jewish name of Esther before she was made queen of Persia. In fact, it was not many years later when Esther would be saving the Jews in the Persian empire from Haman’s planned genocide.
1:8 the bottom. “The bottom” is translated from a Hebrew word used only this once in Scripture, and its meaning is uncertain. It seems to be suggesting that “the myrtle trees [Israel] in the bottom” are somehow in deep trouble and danger, but the Angel of Jehovah will intervene for them.