New Defender's Study Bible Notes
5:10 kings and priests. Three times in Revelation (1:6; 5:10; 20:6), it is said that believers of this age will reign and minister with Christ as “kings and priests” in the coming age.
5:10 on the earth. “On the earth” is probably better rendered “over the earth.” The New Jerusalem will not descend to the earth until after the millennial age (Revelation 20:6; 21:2).