Revelation 4:3
And he that sat was to look upon like a jasper and a sardine stone: and there was a rainbow round about the throne, in sight like unto an emerald.
Revelation 5:3
And no man in heaven, nor in earth, neither under the earth, was able to open the book, neither to look thereon.
Revelation 5:4
And I wept much, because no man was found worthy to open and to read the book, neither to look thereon.