Immediately, I was in [i.e., under the influence of] the Holy Spirit [See 1:10], and there before me was situated a throne in heaven, with Someone sitting on it [Note: From the following description, this appears to have been God].

And the Lamb came and took the book from the right hand of God, who sat on His throne.

Then the One who is seated on the throne [i.e., Christ, or God] said, "Listen, I am making everything new!" Then He said, "Write [this], because these words are trustworthy and true."

Unto

And there was an ocean, as crystal-clear as glass, in front of the throne. And at the center, surrounding the throne were four living beings, covered with eyes in the front and back of them. [Note: In view of Isa. 6:1-3 and especially Eze. 10:20ff, these "living beings" appear to be some special order of heavenly beings who inhabit the presence of God].

And there will no longer be any curse [in the city], and the throne of God and of the Lamb will be there. And God's servants will serve Him,

On the next day John [the Immerser] saw Jesus approaching him and said, "Look, [there is] the Lamb of God; He [will] take away the sin of the people of the world.

General references

And people will come from the east and west and from the north and south to sit down in the kingdom of God.