And the remnant were slain with the sword of him that sat upon the horse, which sword proceeded out of his mouth: and all the fowls were filled with their flesh.

People's New Testament

19:21 And the remnant were slain with the sword of him that sat upon the horse. This is probably symbolic. If these who had been sinners and supporters of the powers of evil were incapacitated for that support longer, it would be their death (separation) from that cause. It may be that this remnant were converted by the word.

And all the fowls were filled with their flesh. If this is a symbol its signification is that the victory was complete.

Wesley's Notes

19:21 Here is a most magnificent description of the overthrow of the beast and his adherents. It has, in particular, one exquisite beauty; that, after exhibiting the two opposite armies, and all the apparatus for a battle, verse s 11 - 19; Rev 19:11 - 19 then follows immediately, verse 20, 19:20 the account of the victory, without one word of an engagement or fighting. Here is the most exact propriety; for what struggle can there be between omnipotence, and the power of all the creation united against it! Every description must have fallen short of this admirable silence.

Jamieson-Fausset-Brown Bible Commentary

21. the remnant-Greek, "the rest," that is, "the kings and their armies" (Re 19:19) classed together in one indiscriminate mass. A solemn confirmation of the warning in Ps 2:10.

Matthew Henry's Concise Commentary

19:11-21 Christ, the glorious Head of the church, is described as on a white horse, the emblem of justice and holiness. He has many crowns, for he is King of kings, and Lord of lords. He is arrayed in a vesture dipped in his own blood, by which he purchased his power as Mediator; and in the blood of his enemies, over whom he always prevails. His name is The Word of God; a name none fully knows but himself; only this we know, that this Word was God manifest in the flesh; but his perfections cannot be fully understood by any creature. Angels and saints follow, and are like Christ in their armour of purity and righteousness. The threatenings of the written word he is going to execute on his enemies. The ensigns of his authority are his name; asserting his authority and power, warning the most powerful princes to submit, or they must fall before him. The powers of earth and hell make their utmost effort. These verses declare important events, foretold by the prophets. These persons were not excused because they did what their leaders bade them. How vain will be the plea of many sinners at the great day! We followed our guides; we did as we saw others do! God has given a rule to walk by, in his word; neither the example of the most, nor of the chief, must influence us contrary thereto: if we do as the most do, we must go where the most go, even into the burning lake.

Matthew Henry's Whole Bible Commentary

Verses 11-21

No sooner was the marriage solemnized between Christ and his church by the conversion of the Jews than the glorious head and husband of the church is called out to a new expedition, which seems to be the great battle that was to be fought at Armageddon, foretold ch. 16:16. And here observe,

I. The description of the great Commander, 1. By the seat of his empire; and that is heaven; his throne is there, and his power and authority are heavenly and divine. 2. His equipage: he is again described as sitting on a white horse, to show the equity of the cause, and certainty of success. 3. His attributes: he is faithful and true to his covenant and promise, he is righteous in all his judicial and military proceedings, he has a penetrating insight into all the strength and stratagems of his enemies, he has a large and extensive dominion, many crowns, for he is King of kings, and Lord of lords. 4. His armour; and that is a vesture dipped in blood, either his own blood, by which he purchased this mediatorial power, or the blood of his enemies, over whom he has always prevailed. 5. His name: The Word of God, a name that none fully knows but himself, only this we know, that this Word was God manifest in the flesh; but his perfections are incomprehensible by any creature.

II. The army which he commands (v. 14), a very large one, made up of many armies; angels and saints followed his conduct, and resembled him in their equipage, and in their armour of purity and righteousness-chosen, and called, and faithful.

III. The weapons of his warfare-A sharp sword proceeding from his mouth (v. 15), with which he smites the nations, either the threatenings of the written word, which now he is going to execute, or rather his word of command calling on his followers to take a just revenge on his and their enemies, who are now put into the wine-press of the wrath of God, to be trodden under foot by him.

IV. The ensigns of his authority, his coat of arms-a name written on his vesture and thigh, King of kings, and Lord of lords, asserting his authority and power, and the cause of the quarrel, v. 16.

V. An invitation given to the fowls of heaven, that they should come and see the battle, and share in the spoil and pillage of the field (v. 17, 18), intimating that this great decisive engagement should leave the enemies of the church a feast for the birds of prey, and that all the world should have cause to rejoice in the issue of it.

VI. The battle joined. The enemy falls on with great fury, headed by the beast, and the kings of the earth; the powers of earth and hell gathered, to make their utmost effort, v. 19.

VII. The victory gained by the great and glorious head of the church: The beast and the false prophet, the leaders of the army, are taken prisoners, both he who led them by power and he who led them by policy and falsehood; these are taken and cast into the burning lake, made incapable of molesting the church of God any more; and their followers, whether officers or common soldiers, are given up to military execution, and made a feast for the fowls of heaven. Though the divine vengeance will chiefly fall upon the beast, and the false prophet, yet it will be no excuse to those who fight under their banner that they only followed their leaders and obeyed their command; since they would fight for them, they must fall and perish with them. Be wise now therefore, O you kings, be instructed, you rulers of the earth; kiss the Son, lest he be angry, and you perish from the way, Ps. 2:10, 12.