Having the glory of God - A glory or splendor such as became the dwelling place of God. The nature of that splendor is described in the following verses.
And her light - In Revelation 21:23 it is said that “the glory of God did lighten it.” That is, it was made light by the visible symbol of the Deity - the “Shekinah.” See the Luke 2:9 note; Acts 9:3 note. The word here rendered “light” - φωστὴρ phōstēr - occurs nowhere else in the New Testament except in Philippians 2:15. It means, properly, a light, a lightgiver, and, in profane writers, means commonly a “window.” It is used here to denote the brightness or shining of the divine glory, as supplying the place of the sun, or of a window.
Like unto a stone most precious - A stone of the richest or most costly nature.
Even like a jasper stone - On the jasper, see the notes on Revelation 4:3. It is used there for the same purpose as here, to illustrate the majesty and glory of God.
Clear as crystal - Pellucid or resplendent like crystal. There are various kinds of jasper - as red, yellow, and brown, brownish yellow, etc. The stone is essentially a quartz, and the word “crystal” here is used to show that the form of it referred to by John was clear and bright.