Revelation 4:6
6
Before the throne was something like a sea of glass, similar to crystal. In the midst of the throne, and around the throne were four living creatures full of eyes before and behind.
Apocalypse Revealed＃375
375. "Amen." This symbolizes the agreement of all.
This verse begins with the word "Amen," and now ends with it. When it is said at the beginning, it symbolizes truth and an affirmation in response to it (no. 371). But when it is said at the end, it symbolizes an affirmation and agreement by all that what has been said is the truth.
