Musar su Levitico 5:5

The fourteenth principle is confession, as it is stated (Leviticus 5:5), "and he shall confess that wherein he has sinned." And he must mention his iniquities and the iniquities of his fathers. For he is punished [for them] - if he holds on to the actions of his fathers. And likewise is it written (Leviticus 26:40), "and they shall confess their iniquity and the iniquity of their fathers."

והתודו את חטאתם . The Sefer HaChinuch writes that we are commanded to confess all our sins before G–d as soon as we feel sorry to have committed such sins. The manner in which this is done is that the sinner recites: "O Lord, I have sinned inadvertently, knowingly, or even out of feelings of rebelliousness," followed by a list of the sins committed. It is necessary to spell out each sin as explicitly as one is capable of, and beg for forgiveness. The procedure should not be something cursory. Our sages add that even sins that can be atoned for by the bringing of a sacrifice must be spelled out at the time the sacrifice is offered. Concerning such sins, the Torah says in Numbers 5,6: "Speak to the children of Israel, any man or woman who will commit any of the sins one is apt to commit against one's fellow man thus breaking faith with G–d, and that person becomes aware of his guilt, he shall confess their sins which they have committed." The Mechilta there comments that the words in Leviticus 5,5: והתודה אשר חטא עליה, indicate that the confession must take place before the sin offering has been slaughtered.

The fourteenth principle of repentance is the confession, as it is said, "That he shall confess that wherein he hath sinned" (Lev. 5:5). And a person is obliged to remember his sins, and the sins of his fathers. Now why should he confess the sins of his fathers? Because of the fact that he is considered guilty if he clings to the evil deeds of his fathers. And thus it is written, "And they shall confess their iniquity and the iniquity of their fathers" (Lev. 26:40). And he should be very careful at the time of the confession to resolve in his heart to abandon his evil ways, for if he returns to them and does not abandon them he is like one who immerses himself but grasps an unclean creature (Ta'anith 16a). For confession is like immersion and the sin is like the unclean worm, and it is clear that immersion is of no use when the person who immerses himself holds on to the source of his defilement.