Exodus 20:14

But because the neighbor is an image of the Trinity, and to him, insofar as he bears the image of the Holy Spirit, benignity is owed: with respect to benignity, to which cupidity and concupiscence are opposed, each of which can be in deed or …

The commandment which pertains to innocence must necessarily be multiplied, because it consists in this: that a man guard against giving offense to his neighbor. Now it happens that one offends his neighbor in three ways, namely in mind, word, and deed. Offense in deed …

The sixth plague was of swelling blisters, by which adulterers are struck, who have swelling blisters, that is, infected flesh. Blisters arise from a humor causing itching, and when a man scratches himself, afterward he suffers pain. Similarly, he who indulges in lust first takes …

And because the lower portion of the soul is informed by the higher and is given to it as a help, it is necessary that the lower have commandments by which it would be conformed to the higher, so that it behave piously, truly and …

Here it is commanded that no one violate the wife of his neighbor. And blessed Augustine says that here is prohibited every illicit use of the generative members, which is done for the pursuit of lust with an assault upon chastity. And this occurs in …

The law cuts away sins of the flesh, but our Redeemer condemns even unlawful thoughts. If therefore they do not hear Moses and the prophets, neither will they believe if someone rises from the dead, because when will those who neglect to fulfill the lesser precepts of the law grow strong enough to obey the higher commands of our Savior? And indeed it is certain that those who refuse to fulfill his words undoubtedly refuse to believe him.

Thou shall not commit adultery, Which, strictly speaking, is only that sin which is committed with another man's wife, as Jarchi observes; but Aben Ezra thinks the word here used signifies the same as another more commonly used for whoredom and fornication; and no doubt but fornication is here included, which, though it was not reckoned a crime among some Heathens, is within the reach of this law, and forbidden by it, it being an impure action, and against a man's body, as the apostle says, 1Co 6:18 as well as sins of a more enormous kind, as unnatural lusts and copulations, such as incest, sodomy, bestiality, &c. and even all unchaste thoughts, desires, and affections, obscene words, and impure motions and gestures of the body, and whatever is in itself unclean or tends to uncleanness; as it also requires that we should, as much as in us lies, do all we can to preserve our chastity, and the chastity of others, pure and inviolate, see Mat 5:28, this is the seventh commandment.

This commandment forbids all acts of uncleanness, with all those fleshly lusts which produce those acts and war against the soul, and all those practices which cherish and excite those fleshly lusts, as looking, in order to lust, which, Christ tells us, is forbidden in this commandment, Matt. v. 28 .

Thou shalt not commit adultery - Adultery, as defined by our laws, is of two kinds; double, when between two married persons; single, when one of the parties is married, the other single. One principal part of the criminality of adultery consists in its injustice. 1. It robs a man of his right by taking from him the affection of his wife. 2. It does him a wrong by fathering on him and obliging him to maintain as his own a spurious offspring - a child which is not his.