"And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away." (Revelation 21:4)
Surely this is one of the most glorious promises in the Bible! No more suffering, no more sorrow, no more death! In this present life, in this present world, every one of us must endure suffering and sorrow in various degrees, and eventually death. But our gracious Savior "hath borne our griefs, and carried our sorrows" and because "the LORD hath laid on him the iniquity of us all. . . . he was cut off out of the land of the living" (Isaiah 53:4, 6, 8), and He endured for us the awful suffering of death on the cross.
In dying, however, He defeated death, rose from the grave, and is now alive "for evermore" (Revelation 1:18). Thus He can promise immortal physical bodies that will never die again to all who trust Him.
How can He do such a thing? He "shall change our vile body, that it may be fashioned like unto his glorious body, according to the working whereby he is able even to subdue all things unto himself" (Philippians 3:21). "The dead shall be raised incorruptible, and we shall be changed" (1 Corinthians 15:52).
The believers of pre-Christian days will also share in these blessings. The prophet Isaiah recorded a beautiful promise to them, as well as us, hundreds of years before Christ came to make it possible. "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: . . . And it shall be said in that day, Lo, this is our God; we have waited for him, and he will save us: this is the LORD; we have waited for him . . . we will be glad and rejoice in His salvation" (Isaiah 25:8-9). HMM