And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful. (Revelation 21:5)
Or, “the one sitting.” He is not identified (cf. on ch. 20:11). In ch. 4:2 (see comment there) the Father is represented as seated on the throne, and the same may here be implied. Some point to Matt. 25:31 as evidence that the reference may be to Jesus Christ.
Behold.
The speaker calls attention to something important about to be disclosed.