Augustine of Hippo

But why is there no fear of uttering an indirect lie? We do not deny that free will is healed by the grace of God, but we believe that we make progress through the daily grace of God, and we trust in its help. And people say, "It is in my own power to do good." If only people did do good! O empty boasting of wretchedness! Every day they disclaim sin, and in their boasting they attribute to themselves unaided free will, not scrutinizing their conscience, which cannot be healed but by grace, so as to say, "Be merciful to me, heal my soul, for I have sinned against you." What would those do who boast of their own free will—which is not denied so long as it is helped by the grace of God—if death had now been swallowed up in victory, if our mortal were putting on immortality and our corruptible were putting on incorruption? Behold, their wounds fester, and they seek a remedy in pride. They do not say with the just person, "Unless the Lord had been my helper, my soul had almost dwelled in hell." They do not say with the saint, "Except the Lord guards the city, he watches in vain that guards it."