What the Bible Says About the Seventh Command: No Adultery

Don't commit adultery
You shall not commit adultery.

 Exodus 20:15

Don't commit fornication

You shall not have intercourse with your neighbor's wife, to be defiled with her. You shall not lie with a male as one lies with a female; it is an abomination. Also you shall not have intercourse with any animal to be defiled with it, nor shall any woman stand before an animal to mate with it; it is a perversion. Do not defile yourselves by any of these things; for by all these the nations which I am casting out before you have become defiled. For the land has become defiled, therefore I have brought its punishment upon it, so the land has spewed out its inhabitants.

 Leviticus 18:20, 22-25

Adultery leads to death

My son, give attention to my wisdom, Incline your ear to my understanding; That you may observe discretion And your lips may reserve knowledge. For the lips of an adulteress drip honey And smoother than oil is her speech; But in the end she is bitter as wormwood, Sharp as a two-edged sword. Her feet go down to death, Her steps take hold of Sheol. She does not ponder the path of life; Her ways are unstable, she does not know it. Now then, my sons, listen to me And do not depart from the words of my mouth. Keep your way far from her And do not go near the door of her house, Or you will give your vigor to others And your years to the cruel one; And strangers will be filled with your strength And your hard-earned goods will go to the house of an alien; And you groan at your final end, When your flesh and your body are consumed;  Drink water from your own cistern And fresh water from your own well. Should your springs be dispersed abroad, Streams of water in the streets? Let them be yours alone And not for strangers with you. Let your fountain be blessed, And rejoice in the wife of your youth. As a loving hind and a graceful doe, Let her breasts satisfy you at all times; Be exhilarated always with her love. For why should you, my son, be exhilarated with an adulteress And embrace the bosom of a foreigner?  For the ways of a man are before the eyes of the LORD, And He watches all his paths. His own iniquities will capture the wicked, And he will be held with the cords of his sin. He will die for lack of instruction, And in the greatness of his folly he will go astray.

 Proverbs 5:1-11, 15-23

Don't desire the adulteress

Do not desire the adulteress’ beauty in your heart, Nor let her capture you with her eyelids. For on account of a harlot one is reduced to a loaf of bread, And an adulteress hunts for the precious life. Can a man take fire in his bosom And his clothes not be burned? Or can a man walk on hot coals And his feet not be scorched? So is the one who goes in to his neighbor's wife; Whoever touches her will not go unpunished. Men do not despise a thief if he steals To satisfy himself when he is hungry; But when he is found, he must repay sevenfold; He must give all the substance of his house. The one who commits adultery with a woman is lacking sense; He who would destroy himself does it. Wounds and disgrace he will find, And his reproach will not be blotted out. For jealousy enrages a man, And he will not spare in the day of vengeance. He will not accept any ransom, Nor will he be satisfied though you give many gifts.

 Proverbs 6:25-35

The look of adultery and divorce

You have heard that it was said, 'YOU SHALL NOT COMMIT ADULTERY'; but I say to you that everyone who looks at a woman with lust for her has already committed adultery with her in his heart. If your right eye makes you stumble, tear it out and throw it from you; for it is better for you to lose one of the parts of your body, than for your whole body to be thrown into hell. If your right hand makes you stumble, cut it off and throw it from you; for it is better for you to lose one of the parts of your body, than for your whole body to go into hell. It was said, 'WHOEVER SENDS HIS WIFE AWAY, LET HIM GIVE HER A CERTIFICATE OF DIVORCE'; but I say to you that everyone who divorces his wife, except for the reason of unchastity, makes her commit adultery; and whoever marries a divorced woman commits adultery.

 Matthew 5:27-32

Some Pharisees came to Jesus, testing Him and asking, "Is it lawful for a man to divorce his wife for any reason at all?" And He answered and said, "Have you not read that He who created them from the beginning MADE THEM MALE AND FEMALE, and said, 'FOR THIS REASON A MAN SHALL LEAVE HIS FATHER AND MOTHER AND BE JOINED TO HIS WIFE, AND THE TWO SHALL BECOME ONE FLESH '? So they are no longer two, but one flesh. What therefore God has joined together, let no man separate." They said to Him, "Why then did Moses command to GIVE HER A CERTIFICATE OF DIVORCE AND SEND her AWAY?" He said to them, "Because of your hardness of heart Moses permitted you to divorce your wives; but from the beginning it has not been this way. And I say to you, whoever divorces his wife, except for immorality, and marries another woman commits adultery." The disciples said to Him, "If the relationship of the man with his wife is like this, it is better not to marry." But He said to them, "Not all men can accept this statement, but only those to whom it has been given. For there are eunuchs who were born that way from their mother's womb; and there are eunuchs who were made eunuchs by men; and there are also eunuchs who made themselves eunuchs for the sake of the kingdom of heaven. He who is able to accept this, let him accept it."

 Matthew 19:3-12

Sex with a prostitute is fornication

Do you not know that your bodies are members of Christ? Shall I then take away the members of Christ and make them members of a prostitute? May it never be! Or do you not know that the one who joins himself to a prostitute is one body with her? For He says, "THE TWO SHALL BECOME ONE FLESH." But the one who joins himself to the Lord is one spirit with Him. Flee immorality.

 I Corinthians 6:14-18

The husband and wife are one

Husbands, love your wives, just as Christ also loved the church and gave Himself up for her, so that He might sanctify her, having cleansed her by the washing of water with the word, that He might present to Himself the church in all her glory, having no spot or wrinkle or any such thing; but that she would be holy and blameless. So husbands ought also to love their own wives as their own bodies. He who loves his own wife loves himself; for no one ever hated his own flesh, but nourishes and cherishes it, just as Christ also does the church, because we are members of His body. FOR THIS REASON A MAN SHALL LEAVE HIS FATHER AND MOTHER AND SHALL BE JOINED TO HIS WIFE, AND THE TWO SHALL BECOME ONE FLESH. This mystery is great; but I am speaking with reference to Christ and the church. Nevertheless, each individual among you also is to love his own wife even as himself, and the wife must see to it that she respects her husband.

Ephesians 5:25-33