7th Commandment

"Thou shalt not commit adultery." Exodus 20:14

This commandment forbids not only acts of impurity, but sensual thoughts and desires, or any practice that tends to excite them. Purity is demanded not only in the outward life but in the secret intents and emotions of the heart. Christ, who taught the far-reaching obligation of the law of God, declared the evil thought or look to be as truly sin as is the unlawful deed.