John Gill's Exposition of the Whole Bible
Ezekiel 39:17
And thou, son of man, thus saith the Lord God,.... What the prophet is ordered by the Lord to say is to creatures not then in being, nor yet; and, were they, they could not understand his words; but however, when the time comes, partly by an instinct in nature, and partly by a particular direction of Providence, they will be gathered together upon so great a slaughter of men; for what follows, though mentioned in this place, will be between the slaughter of Gog's army, and the burial of it, as Kimchi well observes; after the burial such an invitation would be impertinent; and which is made not for the sake of creatures, but of men, to denote the certainty of this great carnage that shall be made:
speak unto every feathered fowl, and to every beast of the field; this must be understood of such fowls, and such beasts, as devour dead carcasses, for all will not feed on them; a like invitation is given after the battle at Armageddon, the same with this here, Revelation 19:17 only with this difference, there an angel is said to cry, here the prophet; there to the fowls only, here to the beasts of the field also; no doubt respect there is had to this passage:
assemble yourselves, and come; gather yourselves on every side to my sacrifices that I do sacrifice for you; such a slaughter of men is called a sacrifice, because there is a likeness between that and the killing of beasts for sacrifice; besides, these enemies of God and his people will fall a victim to his justice, as well as be a repast for fowls and beasts, who are invited, as to a feast, to feed upon them; and there being so much of the power and providence of God in all this, it is ascribed to him, and is called "the supper of the great God",
even a great sacrifice upon the mountains of Israel; where Gog's army will fall, Ezekiel 39:4, and in such vast numbers, that it may well be called a great sacrifice; the sacrifice of a great army by the great God, and for such great number of creatures:
that ye may eat flesh, and drink blood; the flesh and blood of the sacrifices, even of slain men, which carnivorous creatures delight in. The Targum is,
"draw near everywhere round about to the slain, which I slay for you with a great slaughter upon the mountains of Israel, and ye shall eat the flesh, and drink the blood.''