Isaiah 25:7-8. “And He will destroy in this mountain the face of the covering cast over all people, and the veil that is spread over all nations. He will swallow up death in victory; and the Lord GOD will wipe away tears from off all faces; and the rebuke of His people shall He take away from off all the earth: for the LORD hath spoken it. ”
Covering the face indicated grief, sorrow,or misery. The idea here is the removal of all satanic darkness and power now covering the whole of the nations. The prince of the power of the air that works in all sons of sin will be removed from all hearts and minds; then men will, for the first time since Adam’s innocence, be free from all satanic influences and demon power. Satan is the ruler of the darkness of this world, and he and all his agents will be confined to the abyss during the 1,000 years of Rev. 20:7; 24:21-22; Eph. 6:12; Rev. 12:7-12; 20:3).
He will swallow up death in victory: Engulf, remove, abolish, cancel; and cause the ravages and triumph of death to cease. In the first resurrection, before the Millenium, all the righteous dead of all ages, including the godly from Abel to the end of the future Tribulation, will be resurrected; and death will be done away as far as they are concerned, at that time ( I Cor. 15:23, 51-57; Phil. 3:20-21; I Thess. 4:13-17; Rev. 20:4-6). Death will not be destroyed for sinners, though, for they will continue to die during the Millennium. When the second resurrection takes place and all wicked men are given immortality of the body to be tormented day and night eternally, then death will be destroyed (I Cor. 15:24-28, 35-45; Rev. 20:4-6, 11-15). Christ has already conquered death and He now holds the keys of death and hades (Heb. 3:14-15; Rev. 1:18; but death as an enemy will continue throughout the Millenium and exercise its power over sinners (I Cor. 15:24-28; Is. 65:20). After that period there will be no more death (Rev. 21: 3-7; 33:2).
It is always amazing to me how much there is in just a couple of rather short verses. We should understand that the Bible always interprets itself, but in order to see that, we must indeed be diligent students of the Word. We must seek the whole counsel of God, not just the parts that please us or prove our point.