Note 47 — Part I PENANCE AS A VIRTUE AND AS A SACRAMENT
Richard F. (Richard Frederick) Clarke translation
There are three prayers which have quite a special efficacy in this matter: one has come to us from the Holy Ghost through David, the other from Our Lord, and the third from the Church; they are the seven penitential psalms, the Our Father, and the Confiteor. Cf. S. Thom. III. Q. 87, art. 3; I. II. Q. 74, art. 8 ad 6.