He said to her, “Your sins are forgiven.” The others at table said to themselves, “Who is this who even forgives sins?” But he said to the woman, “Your faith has saved you; go in peace.”
--Lk 7:36—8:3 or 7:36-50
Adultery is an injustice. He who commits adultery fails in his commitment. He does injury to the sign of the covenant which the marriage bond is, transgresses the rights of the other spouse, and undermines the institution of marriage by breaking the contract on which it is based. He compromises the good of human generation and the welfare of children who need their parents' stable union.
-- CCC 2381
Adultery refers to marital infidelity. When two partners, of whom at least one is married to another party, have sexual relations - even transient ones - they commit adultery. Christ condemns even adultery of mere desire. The sixth commandment and the New Testament forbid adultery absolutely. The prophets denounce the gravity of adultery; they see it as an image of the sin of idolatry.
-- CCC 2380
Prayer to Jesus is answered by him already during his ministry, through signs that anticipate the power of his death and Resurrection: Jesus hears the prayer of faith, expressed in words (the leper, Jairus, the Canaanite woman, the good thief) or in silence (the bearers of the paralytic, the woman with a hemorrhage who touches his clothes, the tears and ointment of the sinful woman). The urgent request of the blind men, "Have mercy on us, Son of David" or "Jesus, Son of David, have mercy on me!" has-been renewed in the traditional prayer to Jesus known as the Jesus Prayer: "Lord Jesus Christ, Son of God, have mercy on me, a sinner!" Healing infirmities or forgiving sins, Jesus always responds to a prayer offered in faith: "Your faith has made you well; go in peace."
St. Augustine wonderfully summarizes the three dimensions of Jesus' prayer: "He prays for us as our priest, prays in us as our Head, and is prayed to by us as our God. Therefore let us acknowledge our voice in him and his in us."
-- CCC 2616