The rider in the myrtle grove.
I. The prophet saw a grove of myrtle trees in a hollow or low place. By the myrtle grove all are agreed is signified the covenant people, the nation of Israel, and by its being in a low place is indicated their depressed and sad condition. In the Hebrew mind the idea of modest beauty and freshness was associated with the myrtle, and hence we find this introduced as symbolical of the Church under the reign of the Messiah, when, "instead of the briar," the symbol of the world under the curse, "shall come up the myrtle tree" (Isaiah 55:13).
II. The mounted rider, though in appearance as a man, is described as the angel of Jehovah. By this appellation is designated in Scripture a being who on various occasions appeared to men, and who, though coming forth as the angel or messenger of Jehovah, is at the same time represented as a Divine being, having the power of God, receiving the honours due only to God, and exercising the proper functions of the Almighty (cf. Genesis 16:7-14; Genesis 22:11-19; Genesis 21:11, etc., Genesis 48:15-16; Exodus 13:2; Exodus 23:20-21; Joshua 5:13-15). A comparison of these passages leads to the conclusion that the angel of Jehovah is none other than God manifest in human form, the Being who, as the Captain of the Lord's host, led up Israel to Canaan, the Being who came forth to execute vengeance on the enemies of the covenant people, and who was known to Israel as their Protector and Advocate. That this Being is the same who in the fulness of time came to our world as the Angel of the Covenant the teachings of the New Testament lead us confidently to believe.
III. For the consolation and encouragement of the people, the prophet had to tell them that, depressed as was their condition, the Angel of the Lord, the Leader, the Protector, the Redeemer of Israel, was still in the midst of them. He was there, standing and still, but ready to ride forth in their defence, and to send judgments on their adversaries, which was indicated by the vision of His being mounted on a red horse, the symbol of war and bloodshed. He is also with them as their Intercessor with God. Hence He appears in this vision as making intercession for them, beseeching God to have pity on Jerusalem and the cities of Judah; and, now that the time of chastisement was at an end, that He would be gracious to them, grant them full restoration and establishment in their own land.
W. Lindsay Alexander, Zechariah's Visions and Warnings,p. 1; see also Homiletic Quarterly,vol. iii., p. 61.
References: Zechariah 1:8. Spurgeon, Morning by Morning,p. 270. Zechariah 1:8-21. Ibid., Sermons,vol. x., No. 598. Zechariah 1:12; Zechariah 1:13. Ibid., Evening by Evening,p. 55.