Four times in Revelation 21:22-22:5 we see God the Father and the Son mentioned together. The Son of God is referred to as the Lamb of God. In the heavenly city, believers from all the ages of history see the Father and Son enthroned together. It is an answer to the prayer of Jesus our Lord in John 17:24. "Father, I desire that they also whom You gave Me may be with Me where I am, that they may behold My glory which You have given Me; for You loved me before the foundation of the world."
The Lamb is the light of the New Jerusalem. "The city had no need of the sun or the moon to shine in it, for the glory of God illuminated it. The Lamb is the light" (Rev. 21:23). There is no night there in God's one eternal day. In the New Jerusalem, "its gates shall not be shut at all by day (there shall be no night there)." (Rev. 21:25).
Who will live forever in that city of God? The Bible clearly states, "only those who are written in the Lamb's Book of Life" (Rev. 21:27). They are the redeemed of the Lord by the blood of the Lamb. Jesus our Lord is the Lamb of God who takes away the sins of every believer (Rev. 12:10-11).
In that eternal day, "there shall be no more curse, but the throne of God and of the Lamb shall be in it, and His servants shall serve Him" (Rev. 22:3). The curse of sin is forever removed, by the Lamb of God. He was slain at the cross and redeemed us to God by His blood, out of every nation (Rev. 5:9).
