Adultery, Infidelity
See also: 
“You shall not commit adultery”[1] When a man commits adultery with his neighbor’s wife, they shall be put to death, both the adulterous man and the adulterous woman…[2]
In "The Gospel as It Was Revealed to Me"
- The rabbi said so and the scribe as well: “The barren one is, in the house, a curse from God. You have the right and the duty to give her a bill of divorce and not to afflict your manhood by depriving yourself of children.” I do what the Law says. – Jesus: “No. Listen. The Law says not to commit adultery, and you will commit it. The commandment given at the origin is that one and no other.”[3]
- “Do not desire another man's wife” is one and the same as “do not commit adultery.” For desire always precedes action. The man is too weak to desire without satisfying his desire.[4]
- As his desperate mother pleads with him, Jesus speaks to the young profligate leper who had an adulterous affair with the daughter of a client of his father. Jesus is sad: “And when you have sinned, did you not think of your mother? You were mad enough to forget that you had a mother on the earth and that there was a God in Heaven. And if the leprosy had not appeared, you would never have remembered that you offended God and your Neighbor? What have you done with your Soul ... your youth?” – “I was tempted...” – “Are you a child to ignore that this fruit is cursed? You deserve to die without my mercy.”
(He heals him from his leprosy anyway.) “I performed the miracle because of that poor mother. But lust disgusts me so much that I am revolted. You cried out in fear and disgust at the leprosy. For Me, my Soul cried out in disgust at lust. All miseries surround me, and for all I am the Savior. But I prefer to touch a dead, a just one already decomposed in his flesh who was honest and is already at Peace with his spirit, rather than approach a lustful. I am the Savior, but I am the Innocent.
(...) I understand that you would want something different from Me. But I am incapable of it. The ruin of a barely formed youth destroyed by passion disturbed Me more than if I had touched Death. Let us go to the sick. Unable, because of the nausea that strangles me, to be the Word, I will be the salvation of those who hope in Me. Peace be with you.” In fact, Jesus is very pale, as if he were suffering. He only regains his smile when he bends over sick children and the disabled lying on their stretchers. Then, He becomes Himself again (...)[5] - (...) The husband who goes to other loves is a murderer of his wife, his children, and himself. He who enters another’s home to commit adultery is a thief and one of the vilest. Like the cuckoo, he freeloads on another’s nest. He who betrays the trust of a friend is a forger, for he shows a friendship that he in reality does not possess. Such a man dishonors himself and dishonors his parents. Can he then have God with him?[6]
- “And a Woman who prostitutes herself, what sin does she commit?” – “If she is married, she is guilty of adultery and theft against her husband. If she is a maiden, of impurity and theft against herself.”[7]
- Incest and adultery.[8]
- Every man who looks at another’s wife with desire has already committed adultery with her in his heart.[9]
- Those who do not love their companion with their Soul, their spirit and their flesh, drive him to adultery. [...] I do not even want to dwell on the too frequent case of your carnal infidelities, which do not make you different from prostitutes; I speak of your moral infidelity to the love pact sworn before my altar.[10]
- (John 8:1-11): They drag a Woman of about thirty years, disheveled, her clothes in disorder, like a mistreated person, and in tears. They throw her at the feet of Jesus like a heap of rags or a dead corpse... “Master, this Woman has been caught in the very act of adultery...”[11]
In Other Works by Maria Valtorta
Notebooks of 1943
Catechesis of September 25: Condemnation of adultery.
…Adulterous and cursed is he who, in an obscene comedy, lives two or more marital lives, and returns to his husband and innocent children with the fever of sin in his blood and the smell of vice on his lying lips.[12]
Nothing makes adultery lawful. Nothing. Neither abandonment, nor the illness of the spouse, and even less their more or less bad character. Most of the time, it is your lustful being that makes you see your partner as bad. You want to see them thus to justify to yourselves your shameful behavior that your Conscience reproaches you for…[13]
In Fundamental Christian Texts
In the Bible
“You shall not commit adultery” (Exodus 20:14 - Deuteronomy 5:18) – When a man commits adultery with his neighbor’s wife, they shall be put to death, the adulterous man as well as the adulterous woman (Leviticus 20:10) – The eye of adultery spies at twilight. “No eye shall see me,” he says and puts on a mask (Joel 24:15) – Whoever commits adultery with a woman is a fool, he makes her the ruin of his life (Proverbs 6:32) – Such is the conduct of the adulterous woman: she eats, wipes her mouth and says: “I have done no wrong!” (Proverbs 30:20)
In the Catechism of the Catholic Church
- The divorced who remarry civilly (CCC 1650).
- Every act that is directly willed is imputable to its author (CCC 1736).
- It is not permissible to do evil so that Good may result (CCC 1756).
- The root of sin is in the Heart of man, in his free will (CCC 1853).
- Master, what good must I do to have eternal life? (CCC 2052)
- Charity does no harm to the Neighbor (CCC 2196).
- Behold! I say to you: ‘Whoever looks at a woman to lust for her has already committed adultery with her in his heart’ (CCC 2336)
- Offenses against the dignity of marriage (CCC 2380).
- The purification of the Heart (CCC 2517).
- If we ask with a divided Heart for “adultery,” God cannot hear us (CCC 2737).