Whether contrition, confession, and satisfaction are fittingly assigned as parts of Penance?

❌ Objection 1 : It would seem that contrition, confession, and satisfaction are not fittingly assigned as parts of Penance. For contrition is in the heart, and so belongs to interior penance; while confession consists of words, and satisfaction in deeds; so that the two latter belong to interior penance. Now interior penance is not a sacrament, but only exterior penance which is perceptible by the senses. Therefore these three parts are not fittingly assigned to the sacrament of Penance.

❌ Objection 2 : Further, grace is conferred in the sacraments of the New Law, as stated above (Question [62], Articles [1],3). But no grace is conferred in satisfaction. Therefore satisfaction is not part of a sacrament.

❌ Objection 3 : Further, the fruit of a thing is not the same as its part. But satisfaction is a fruit of penance, according to Lk. 3:8: "Bring forth . . . fruits worthy of penance." Therefore it is not a part of Penance.

❌ Objection 4 : Further, Penance is ordained against sin. But sin can be completed merely in the thought by consent, as stated in the FS, Question [72], Article [7]: therefore Penance can also. Therefore confession in word and satisfaction in deed should not be reckoned as parts of Penance.