Revelation 1:2

1:2 Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.

Revelation 10:11

10:11 And he said unto me, Thou must prophesy again before many peoples, and nations, and tongues, and kings.

Revelation 16:8

16:8 And the fourth angel poured out his vial upon the sun; and power was given unto him to scorch men with fire.