Rev. 14:17 – Then another angel who also had a sharp sickle came out of the sanctuary in heaven. 18 Yet another angel, who had authority over fire, came from the altar, and he called with a loud voice to the one who had the sharp sickle, “Use your sharp sickle and gather the clusters of grapes from earth’s vineyard, because its grapes have ripened.” (HCSB)
Another angel had a sharp sickle
Next, we encounter the fourth angel of Revelation 14. Like the One seated on the cloud, he also wields a sharp sickle and comes out of the sanctuary in heaven. A fifth angel follows him, and this one is said to have “authority over fire.” He calls in a loud voice to the fourth angel, “Use your sharp sickle and gather the clusters of grapes from earth’s vineyard, because its grapes have ripened” (v. 18).
This passage echoes Joel 3:9-13 in which grape harvesting and wine pressing are used as metaphors for judgment, and Isa. 63:1-6 in which God treads the grapes in His fury, pressing out the lifeblood of people. The same metaphor is found in Jer. 25:15, 28-31. Judgment also is symbolized by the harvest in Jer. 51:33 and Hosea 6:11. Moreover, it is the Messiah who treads the winepress in Rev. 19:15.
Why are we told about the angel that has “authority over fire?” Perhaps this is connected to the fifth seal in Rev. 6:9-11. Here, martyrs “under the altar” cry out to God for vengeance. Later, in the seventh seal, an angel with a gold incense burner stands at the altar. He is given a large amount of incense to offer with the prayers of all the saints on the gold altar in front of the throne. The angel takes the incense burner, fills it with fire from the altar, and hurls it to the earth, which results in rumblings of thunder, flashes of lightning, and an earthquake. This also helps prepare the seven angels to usher in the next series of judgments.