If we say that we have no sin, we deceive ourselves, and the truth is not in us. – 1John 1:8
Some look upon sin as a technical term, and though they admit in words that they have sin, yet they practically deny it by saying, “I have a good heart at bottom; I always was well-intentioned from the very first. True, what I have done does not appear to be right according to the very severe judgment of the law of God; but I cannot help that; I only followed my nature, and cannot be blamed, for I never meant to do anything wrong, either to God or man. I have always been kind to the poor and have done the right thing all round. I know I have—of course we all have—erred here and there, but you cannot expect a fellow to be perfect. I can’t say I see anything to find fault with.” Thus, you in effect say you have no sin. Though you compliment God by saying with the church service, “We are miserable sinners,” you do not mean it at all; you mean that if you have sinned it has been your misfortune, and you are to be pitied rather than blamed. In so saying or feeling you prove that the truth is not in you, you are either deplorably ignorant as to what holiness is, or else you are wilfully uttering a falsehood; in either case the truth is not in you.
Some confess that they have sinned, they think themselves now to be in a proper and fit condition to receive pardon. “We have prayed,” say they; “we have repented, we have read the Scriptures, we have attended public worship, and are as right as we can be: we have tenderness and contrition, and every right and proper feeling; our wonder is that we do not receive salvation.” …The idea of fitness is only another form of the vain notion of merit, and it cannot find an inch of foothold in the gospel. True penitents can see nothing in themselves to commend them to mercy, and therefore they cast themselves upon undeserved favor, feeling both unworthy and unfit, but hoping to receive forgiveness freely.