Andreas of Caesarea : If we acknowledge our sin and confess it, he will forgive it, and not only that one but all our sins. For when a person repents and is baptized into the name of Jesus Christ, God forgives all his sins which he has committed both against himself and against heaven. — CATENA Augustine of Hippo : "If we confess our sins, He is faithful and just to forgive us our sins, and to purge us from all iniquity." Not only the past, but haply if we have contracted any from this life; because a man, so long as he bears the flesh, cannot but have some at any rate light sins. But these which we call light, do not thou make light of. If thou make light of them when thou weighest them, be afraid when thou countest them. Many light make one huge sin: many drops fill the river; many grains make the lump. And what hope is there? Before all, confession: lest any think himself righteous, and, before the eyes of God who seeth that which is, man, that was not and is, lift up the neck. Before all, then, confession; then, love: for of charity what is said? "Charity covereth a multitude of sins." — Ten Homilies on 1 John 1 Augustine of Hippo : Now let us see whether he commendeth charity in regard of the sins which subsequently overtake us: because charity alone extinguisheth sins. Pride extinguisheth charity: therefore humility strengtheneth charity; charity extinguisheth sins. Humility goes along with confession, the humility by which we confess ourselves sinners: this is humility, not to say it with the tongue, as if only to avoid arrogancy, lest we should displease men if we should say that we are righteous. This do the ungodly and insane: "I know indeed that I am righteous, but what shall I say before men? If I shall call myself righteous, who will bear it, who tolerate? let my righteousness be known unto God: I however will say that I am a sinner, but only that I may not be found odious for arrogancy." Tell men what thou art, tell God what thou art. Because if thou tell not God what thou art, God condemneth what He shall find in thee. Wouldest thou not that He condemn thee? Condemn thou. Wouldest thou that He forgive? Do thou acknowledge, that thou mayest be able to say unto God, "Turn Thy face from my sins." Say also to Him those words in the same Psalm, "For I acknowledge mine iniquity." "If we confess our sins, He is faithful and just to forgive us our sins, and to purge us from all iniquity. If we say that we have not sinned, we make Him a liar, and His word is not in us." If thou shalt say, I have not sinned, thou makest Him a liar, while thou wishest to make thyself true. How is it possible that God should be a liar, and man true, when the Scripture saith the contrary, "Every man a liar, God alone true"? Consequently, God true through Himself, thou true through God; because through thyself, a liar. — Ten Homilies on 1 John 1 Bede : If we confess our sins, He is faithful, etc. Because we cannot be without sin in this life, the first hope of salvation is confession, and no one should consider themselves just or lift up their neck before the eyes of God. Then comes love, because charity covers a multitude of sins (1 Peter 4), which is consequently highly recommended to us with much praise in the following parts of this Epistle. Beautifully, both are suggested together, that we should both pray for our sins and obtain God's indulgence when we pray. Therefore, He is also called faithful to forgive sins, retaining the faithfulness of His promise, because He who taught us to pray for our sins and debts promised fatherly mercy and ensuing forgiveness. He also affirms Him to be just, because He justly forgives true confession. "That He may forgive us our sins," he says, "and cleanse us from all iniquity." He forgives daily and slight sins to the elect in this life, without which they cannot live on earth; He cleanses them after the dissolution of the flesh from all iniquity, bringing them into that life in which they neither wish to sin nor can. He now forgives greater temptations to those who pray, so they may not be overcome; He forgives the smallest, so they may not be injured; He then cleanses from all, so that no iniquity at all may exist among the blessed in the eternal kingdom. — Commentary on the Catholic Epistles Cyprian : After this we also entreat for our sins, saying, "And forgive us our debts, as we also forgive our debtors." After the supply of food, pardon of sin is also asked for, that he who is fed by God may live in God, and that not only the present and temporal life may be provided for, but the eternal also, to which we may come if our sins are forgiven; and these the Lord calls debts, as He says in His Gospel, "I forgave thee all that debt, because thou desiredst me." And how necessarily, how providently and salutarily, are we admonished that we are sinners, since we are compelled to entreat for our sins, and while pardon is asked for from God, the soul recalls its own consciousness of sin! Lest any one should flatter himself that he is innocent, and by exalting himself should more deeply perish, he is instructed and taught that he sins daily, in that he is bidden to entreat daily for his sins. Thus, moreover, John also in his epistle warns us, and says, "If we say that we have no sin, we deceive ourselves, and the truth is not in us; but if we confess our sins, the Lord is faithful and just to forgive us our sins." In his epistle he has combined both, that we should entreat for our sins, and that we should obtain pardon when we ask. Therefore he said that the Lord was faithful to forgive sins, keeping the faith of His promise; because He who taught us to pray for our debts and sins, has promised that His fatherly mercy and pardon shall follow. — Treatise IV. On the Lord's Prayer 22 Desert Fathers : A hermit said that a man once committed a serious sin. Stricken with remorse, he went to confess to another monk. He did not tell him what he had done, but put it in the form of a question, 'If such a thought arose in someone's mind, would he be saved?' The monk, who had no discretion, answered, 'You are completely lost.' When the brother heard this, he said, 'Well, if I'm going to perish, I'll go and do it in the world.' But on his way he considered the matter and decided to tell his temptations to Silvanus, who possessed great discretion in these matters. The brother went to him and did not tell him what he had done, but again put it in the form of a question, 'If a thought like this came into someone's mind, could he be saved?' Silvanus began to speak to him with texts from Scripture, and said, 'That judgement does not only fall on people tempted to sin.' The brother perceived the force of the saying, and began to hope, and told him what he had done. When Silvanus learnt what he had done, he acted like a skilled physician and put on his soul a poultice made of texts from Scripture, showing him that repentance is available for all who in truth and in charity turn to God. After some years Silvanus met the monk who had driven the brother to despair, and told him what had happened, and said, 'That brother, who despaired because of your words, and was going back to the world, is now a bright star among the brothers.' He told him this so that we may know how perilous it is when anyone confesses thoughts or sins to someone without discretion. — The Desert Fathers, Sayings of the Early Christian Monks Tertullian : If we confess our sins, faithful and just is He to remit them to us, and utterly purify us from every unrighteousness." Does he say "from impurity? "(No): or else, if that is so, then (He "utterly purifies" us) from "idolatry" too. — On Modesty Tertullian : For see yet again: "If we say," he says, "that we have not sinned, we make Him a liar, and His word is not in us." All the more fully: "Little children, these things have I written to you, lest ye sin; and if ye shall have sinned, an Advocate we have with God the Father, Jesus Christ the righteous; and, He is the propitiation for our sins. — On Modesty