Caesarius of Arles — on Rev 20:6 (EXPOSITION ON THE APOCALYPSE 20:6, HOMILY 18)

“The Spirit repeats what he had written before, that the church is going to reign a thousand years in this age until the end of the world. It is clear that no one ought doubt about the eternal rule when the saints rule even in this present age. For those are rightly said to reign who with God's aid govern well both themselves and others in the temptations of the present world.”