That no one is without filth and without sin
In Job: “For who is pure from filth? Not one; even if his life be of one day on the earth.” Also in the fiftieth Psalm: “Behold, I was conceived in iniquities, and in sins has my mother conceived me.” Also in the Epistle of John: “If we say that we have no sin, we deceive ourselves, and the truth is not in us.”
Source: The Treatises of Cyprian (New Advent)