Whether this sacrament is necessary for salvation?

❌ Objection 1 : It would seem that this sacrament is not necessary for salvation. Because on Ps. 125:5, "They that sow in tears," etc., the gloss says: "Be not sorrowful, if thou hast a good will, of which peace is the meed." But sorrow is essential to Penance, according to 2 Cor. 7:10: "The sorrow that is according to God worketh penance steadfast unto salvation." Therefore a good will without Penance suffices for salvation.

❌ Objection 2 : Further, it is written (Prov. 10:12): "Charity covereth all sins," and further on (Prov. 15:27): "By mercy and faith sins are purged away." But this sacrament is for nothing else but the purging of sins. Therefore if one has charity, faith, and mercy, one can obtain salvation, without the sacrament of Penance.

❌ Objection 3 : Further, the sacraments of the Church take their origin from the institution of Christ. But according to Jn. 8 Christ absolved the adulterous woman without Penance. Therefore it seems that Penance is not necessary for salvation.