And every spirit that confesses not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, of which you have heard that it should come; and even now already is it in the world.
All Commentaries on 1 John 4:3 Go To 1 John 4
Cyprian of Carthage
AD 258
How can either darkness illuminate, or unrighteousness justify? And when they say that "they are not of God, but are of the spirit of Antichrist"