Revelation 4:1-3

Thomson(i) 1 After this I looked and behold a door was opened in the heaven, and the voice which I heard at first like that of a trumpet speaking to me said, Come up hither and I will shew thee the things which must hereafter come to pass. 2 Thereupon I was immediately enrapt, and behold a throne was set in the heaven, and one was sitting on the throne. 3 And he who was sitting was in appearance like a jasper and sardine stone, and there was a rainbow, in appearance like a smaragdine, around the throne.