And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and who had not worshiped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
All Commentaries on Revelation 20:4 Go To Revelation 20
Bede
AD 735
judgment: He indicates that which is done in the thousand years in which Satan is bound. For the Church, which in Christ will sit on twelve thrones to judge, now sits and judges, seeing that she has obtained to hear from her King, "whatsoever thou shalt bind on earth shall be bound in heaven."