“After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter. And immediately I was in the spirit: and, behold, a throne was set in heaven, and one sat on the throne. 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 ‭4‬:‭1‬-‭3‬ ‭KJV‬‬,https://bible.com/bible/1/rev.4.1-3.KJV