A.T. Robertson Commentary Revelation 21:26

"and they shall bring the glory and the honor of the nations into it:" — Revelation 21:26 (ASV)

They shall bring (οισουσιν). Future active indicative of φερω. Rome gathered the merchandise of the world (18:11ff.). The City of God will have the best of all the nations (Isaiah 60:5,11), an expansion of verse 24.