Sea of glass
Easton, 1897
A figurative expression used in Revelation 4:6 and Revelation 15:2. According to the interpretation of some, "this calm, glass-like sea, which is never in storm, but only interfused with flame, represents the counsels of God, those purposes of righteousness and love which are often fathomless but never obscure, always the same, though sometimes glowing with holy anger." (Comp. Psalms 36:6; Psalms 77:19; Romans 11:33-36.)
Dictionary: M. G. Easton, Illustrated Bible Dictionary (1897, public domain).