The Lamb is coming to rescue his people.
He does that before he arrives at Armageddon, where he kills an entire army.
Mainly found in the vials of wrath.
The wicked think its arbitrary punishment but in fact it is exposure to themselves; exposure of what they have so long denied.
Paul tells us in Romans 1 what Gods wrath is. It is giving them over to the consequences of their choices, one of which is intense fear.
They have kept themselves distracted with their sins/ delusions and now there is nowhere to hide.
That's not what the bible says, look at the vials again.
Rev 16:2 And the first went, and poured out his vial upon the earth;
and there fell a noisome and grievous sore upon the men which had the mark of the beast, and upon them which worshipped his image.
Rev 16:3 And the second angel poured out his vial upon the sea; and it became as the blood of a dead man: and every living soul died in the sea.
Rev 16:4 And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.
Rev 16:5 And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.
Rev 16:6 For they have shed the blood of saints and prophets, and thou hast given them blood to drink; for they are worthy.
Rev 16:7 And I heard another out of the altar say, Even so, Lord God Almighty, true and righteous are thy judgments.
Rev 16:8 And the fourth angel poured out his vial upon the sun; and power was given unto him to scorch men with fire.
Rev 16:9
And men were scorched with great heat, and blasphemed the name of God, which hath power over these plagues: and they repented not to give him glory.
Rev 16:10 And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,
Rev 16:11 And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds.
Rev 16:12 And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared.
Rev 16:13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
Rev 16:14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
Rev 16:15 Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.
Rev 16:16 And he gathered them together into a place called in the Hebrew tongue Armageddon.