Deuteronomy 32:41

If I whet my glittering sword,.... That is, I will do it as sure as I live, if I do not, be it so and so; what that is is not said, but left to be concluded. A glittering sword is a sword drawn, the blade of it drawn out of the scabbard, cleaned and polished, whetted and made sharp, that it may more easily penetrate and pierce; and this, being brandished, glitters like lightning, as the word used signifies. Whetting the sword is a preparation for doing execution with it; and is a warning, a giving notice of it, as girding: the sword on the thigh also is ascribed to Christ, Psalms 45:3. This sword intends a sword of justice, the sharp sword said to proceed out of the mouth of Christ, the judiciary sentence which he will pronounce and execute on antichrist, and all his followers, Revelation 19:15;

and my hand take hold on judgment: in order to execute it; the allusion is to the laying hold on the instruments of justice and death, as the glittering sword before mentioned, and arrows afterwards; and may have respect to the four sore judgments, or at least to some of them, which the Lord will execute on mystical Babylon, Ezekiel 14:21; and particularly to the seven vials of God's wrath, which will be poured out on the antichristian states, Revelation 16:1;

I will render vengeance to mine enemies, and I will reward them that hate me; his enemies that hate him, and will not have him to rule over them, are the followers of antichrist, who has his name from his opposition to Christ, his hatred of him, and enmity against him; opposing him in his kingly office, taking upon him to exercise dominion and tyranny over the consciences of men, making new laws, and imposing them on them, and dispensing with the laws of Christ; and setting aside his priestly office by the sacrifice of the Mass, granting pardons and indulgences, and advancing the works and merits of men, in opposition to the righteousness of Christ, and pretending even to works of supererogation; making of none effect, as much as in him lies, his prophetic office, by setting up unwritten traditions before the word of God, and making them the rule of faith and practice, and assuming to himself an infallible interpretation of the sense of Scripture. The vengeance Christ will render, as a righteous reward to those his enemies, is expressed by destroying antichrist with the breath of his mouth; by the beast going into perdition; by leading them captive who have led others; by killing them with the sword who have killed others with it; by pouring out the vials of his wrath on them; by giving them the cup of the wine of the fierceness of his wrath; by smiting them with the sword that comes out of his mouth, and by bringing upon them death, mourning, and famine, and burning them with fire; all which he will most surely render unto them, 2 Thessalonians 2:8

Revelation 19:15.