See on 2Pe 2:1. Only here in Revelation. Addressed to God rather than to Christ, and breathing, as Professor Milligan remarks, “the feeling of Old Testament rather than of New Testament relation.” Compare Act 4:24; Jud 1:4.
True (ἀληθινὸς)
See on Joh 1:9; see on Rev 3:7.
Judge (κρίνεις)
Originally the verb means to separate; thence the idea of selection: to pick out, and so to discriminate or judge.
Avenge (ἐκδικεῖς)
Compare Luk 18:3; Rom 12:19.
On the earth (ἐπὶ τῆς γῆς)
Earth, in Revelation, is generally to be understood of the ungodly earth.