Revelation 20:11

The utter destruction of the devil's kingdom very properly leads to an account of the day of judgment, which will determine every man's everlasting state; and we may be assured there will be a judgment when we see the prince of this world is judged, Joh 16:11. This will be a great day, the great day, when all shall appear before the judgment-seat of Christ. The Lord help us firmly to believe this doctrine of the judgment to come. It is a doctrine that made Felix tremble. Here we have a description of it, where observe, 1. We behold the throne, and tribunal of judgment, great and white, very glorious and perfectly just and righteous. The throne of iniquity, that establishes wickedness by a law, has no fellowship with this righteous throne and tribunal. 2. The appearance of the Judge, and that is the Lord Jesus Christ, who then puts on such majesty and terror that the earth and the heaven flee from his face, and there is no place found for them; there is a dissolution of the whole frame of nature, Pe2 3:10. 3. The persons to be judged (Rev 20:12): The dead, small and great; that is, young and old, low and high, poor and rich.

— Matthew Henry's Concise Commentary (public domain)

great--in contrast to the "thrones," Rev 20:4. white--the emblem of purity and justice. him that sat on it--the Father [ALFORD]. Rather, the Son, to whom "the Father hath committed all judgment." God in Christ, that is, the Father represented by the Son, is He before whose judgment-seat we must all stand. The Son's mediatorial reign is with a view to prepare the kingdom for the Father's acceptance. When He has done that, He shall give it up to the Father, "that God may be all in all," coming into direct communion with His creatures, without intervention of a Mediator, for the first time since the fall. Heretofore Christ's Prophetical mediation had been prominent in His earthly ministry, His Priestly mediation is prominent now in heaven between His first and second advents, and His Kingly shall be so during the millennium and at the general judgment. earth and heaven fled away--The final conflagration, therefore, precedes the general judgment. This is followed by the new heaven and earth (Rev. 21:1-27).

— Jamieson-Fausset-Brown Commentary (public domain)