Q. 78. What is forbidden in the seventh commandment?
A. The seventh commandment forbids all unchaste thoughts, words, and actions.
But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart. If your right eye causes you to sin, tear it out and throw it away. For it is better that you lose one of your members than that your whole body be thrown into hell. And if your right hand causes you to sin, cut it off and throw it away. For it is better that you lose one of your members than that your whole body go into hell.
“It was also said, ‘Whoever divorces his wife, let him give her a certificate of divorce. But I say to you that everyone who divorces his wife, except on the ground of sexual immorality, makes her commit adultery, and whoever marries a divorced woman commits adultery.
“I have made a covenant with my eyes;
how then could I gaze at a virgin?
But sexual immorality and all impurity or covetousness must not even be named among you, as is proper among saints. Let there be no filthiness nor foolish talk nor crude joking, which are out of place, but instead let there be thanksgiving.
Let us walk properly as in the daytime, not in orgies and drunkenness, not in sexual immorality and sensuality, not in quarreling and jealousy.
6 Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer each person.