CCC 1429
© Libreria Editrice Vaticana Source: vatican.va
St. Peter's conversion after he had denied his master three times bears witness to this. Jesus' look of infinite mercy drew tears of repentance from Peter and, after the Lord's resurrection, a threefold affirmation of love for him. Cf. Lk 22:61; Jn 21:15-17. The second conversion also has a communitarian dimension, as is clear in the Lord's call to a whole Church: "Repent!" Rev 2:5, 16.
St. Ambrose says of the two conversions that, in the Church, "there are water and tears: the water of Baptism and the tears of repentance." St. Ambrose, ep. 41, 12: PL — Patrologia Latina (Migne).
Read the full chapter 2. The Sacraments of Healing ¶1420–1532