Revelation 22:3 says concerning New Jerusalem:
Here are more verses about the exalted and enthroned Lamb.
Philippians 2:9-11, “God highly exalted Him [Christ Jesus] and bestowed on Him the name which is above every name, that in the name of Jesus every knee should bow, of those who are in heaven and on earth and under the earth, and every tongue should openly confess that Jesus Christ is Lord to the glory of God the Father.” We confess Jesus Christ is Lord to the glory of God now and in New Jerusalem.
Hebrews 2:7b-8a, “You [God] have crowned Him [Jesus] with glory and honor and have set Him over the works of Your hands; You have subjected all things under His feet. For in subjecting all things to Him, He left nothing unsubject to Him.”
Revelation 1:5, “Jesus Christ, the faithful Witness, the Firstborn of the dead, and the Ruler of the kings of the earth.” If we look at today’s situation with our human understanding, we doubt. But, we should say “amen” to God’s word. Jesus Christ is the Ruler today as He will be in New Jerusalem.
Revelation 17:14, “…the Lamb…is Lord of lords and King of kings…” Revelation 19:16, “He has on His garment and on His thigh a name written, King of Kings And Lord of Lords.”
This wonderful One is on the throne now and will be on the throne in New Jerusalem. In Revelation 22:1 John saw “a river of water of life, bright as crystal, proceeding out of the throne of God and of the Lamb.” This river flows to keep us under His authority and is flowing now as the Spirit which we have received (John 7:37-39). To drink the Spirit now (1 Cor. 12:13) is to have a foretaste of New Jerusalem.