Jamieson, Fausset and Brown on Revelation 21:11

11. Having the glory of God--not merely the Shekinah-cloud, but God Himself as her glory dwelling in the midst of her. Compare the type, the earthly Jerusalem in the millennium (Zec 2:5; compare Re 21:23, below).

her light--Greek, "light-giver": properly applied to the heavenly luminaries which diffuse light. Compare Note, see on Php 2:15, the only other passage where it occurs. The "and" before "her light' is omitted in A, B, and Vulgate.

even like--Greek, "as it were."

jasper--representing watery crystalline brightness.