Revelation 4:1: “After this [The vision/things seen and heard in Revelation chapters 1, 2 and 3] I [John] 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, [To heaven] and I will shew thee things” [Prophesies] “which must be hereafter.”
Revelation 4:2: “And immediately I [John] was in the spirit: and, behold, a throne was set in heaven, and one” [The Most High] “sat on the throne.”
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 4:4: “And round about the [Most High's] throne were four and twenty seats: and upon the seats I saw four and twenty elders sitting, clothed in white raiment; and they [The 24 Elders] had on their heads crowns of gold.”