If we say that we have no sin, we deceive ourselves, and the truth is not in us.
All Commentaries on 1 John 1:8 Go To 1 John 1
Cyprian of Carthage
AD 258
And again, in his epistle, John lays it down, and says, "If we say that we have no sin, we deceive ourselves, and the truth is not in us.".
Also in the Epistle of John: "If we say that we have no sin, we deceive ourselves, and the truth is not in us."