REV 14:18

18 From the altar came another angel. He is the one who takes care of the fire [of the altar. Also speaking figuratively about gathering the wicked people for God to judge and punish them], he said in a loud voice to the angel who held the sharp sickle, “With your sharp sickle cut off the clusters of grapes in the vineyards on the earth! Then gather the clusters of grapes together, because its grapes are ripe!”