Halakhah sa Mga Kawikaan 28:13: Mishneh Torah, Repentance & Sefer Chasidim

He who confesses by speech but has not his heart's consent to abandon his erstwhile conduct, behold him, he is like one taking an immersion of purification and in his grasp is an impure creeping thing, when he knows the immersion to be of no value till he cast away the impure creeping thing. Even so it is advised to do, saying: "But whoso confesseth and forsaketh them shall shall obtain mercy" (Pro. 28. 13). In confessing to God, it is obligatory to name the sin, even as it is said: "Oh, this people have sinned a great sin, and have made them a god of gold" (Ex. 32.31).³Ta’anit, 16a; Yoma, 86b. C.

Among the ways of repentance are, for the penitent to continue to cry out in tearful supplication before the Name, to bestow alms according to his means, and to distance himself exceedingly from the thing wherein he sinned, to have his identity changed, as if saying: "I am now another person, and not that person who perpetrated those misdeeds", to completely change his conduct for the good and straight path, and to exile himself from his place of residence, for exile atones iniquity, because it leads him to submissiveness and to be meek and humble-spirited.⁴Rosh-ha-Shanah, 16b. C.

The penitent who confesses publicly is praiseworthy, and it is commendable for him to let the public know his iniquities, and to reveal the sins between himself and his neighbor to others, saying to them: "Truly, I have sinned against that man, and I have wronged him thus and such, but, behold me this day, I repent and am remorseful". But he, who is arrogant and reveals not but covers up his sins, is not a wholehearted penitent, of whom it is said: "He that covereth his sins shall not prosper" (Prov. 28.13). But that is saying solely concerning sins between man and man, but sins between man and God, the penitent need not make public, on the contrary it would be impudent of him to reveal them. He, however, should repent before God, blessed is he! and before Him he should detail his sins; and then make public confession upon them by simply saying: "I have sinned". Such procedure is, indeed, for his own good, even as it is said: "Blessed is he whose transgression is forgiven, whose sin is covered (Ps. 32.1).⁶Rosh ha-Shanah, 18a. C.