Thou Shalt Not Commit Adultery

A look at the seventh commandment: thou shalt not commit adultery.


Thou shalt not commit adultery.
Exodus 20:14 KJV
Adultery is the crime of having sexual intercourse with (expanded by Jesus to simply lusting after) someone else's spouse or someone who is not your spouse. The seventh commandment from God is to refrain from this behavior.


Thou shalt not commit adultery.Exodus 20:14 KJV
Neither shalt thou commit adultery.Deuteronomy 5:18 KJV

Bible Verses

  1. Exodus 20:14
  2. Leviticus 18:20
  3. Leviticus 20:10
  4. Numbers 5:12-15
  5. Deuteronomy 5:18
  6. Deuteronomy 22:22
  7. Proverbs 6:29
  8. Proverbs 6:32
  9. Matthew 5:27-28
  10. Matthew 19:18
  11. Mark 10:19
  12. Luke 18:20
  13. Romans 13:9-10
  14. Hebrews 13:4



Many people seek reason for God's law and are not satisfied with simply following the rules, so lets talk about the consequences for breaking this commandment. An obvious consequence of our day is that you increase your risk of contracting a sexually transmitted disease. Before the 1980s it was nearly impossible to identify paternity outside of he-said she-said[1]. If a woman had multiple partners, when she became pregnant there was no way of knowing which partner was the father (unless one of the fathers was from a different race). Also, jealousy would become a problem. Both men and women are prone to jealous over their spouses being wooed by someone else. This jealousy often leads to violence.

An interesting thing is whether or not polygamy is considered adultery... Arguments have been formed both for and against polygamy[2][3][4]. Obviously, those who are against polygamy consider this to be adultery, while those who are for polygamy do not consider it to be adultery. Lamech, from Cain's line, was the first man mentioned to have two wives, which doesn't give the notion much credibility, but several of God's chosen people have multiple wives as well: Abraham and Jacob for example. In Abraham's case, God protected Hagar and Ishmael but the blessing of His covenant was passed on to Isaac, the son of Abraham's first wife. While Joseph, Jacob's son from his second wife, experiences both hardship and prosperity as the favored son, it is through Judah, Jacob's son from his first wife, that King David and Jesus are descended. Those who are pro-polygamy cite Moses' law in Deuteronomy 21:15 concerning a man with two wives as proof that polygamy was not condemned by God. Of course in the New Testament, we are told a blameless man should be a man with one wife (1 Timothy 3:2, 1 Timothy 3:12, 1 Timothy 5:9, and Titus 1:6).

So, is polygamy ok, is it adultery? I would say, based on the verses in the Bible that discuss marriage, that polygamy is/was not God's preferred marriage institution, but also wasn't expressly forbidden. If God wanted polygamous relationships from the beginning, He would have created multiple wives for Adam. Just as early humans were allowed to marry their siblings but later forbidden, this was something God allowed to occur. In each of these scenarios, we see problems that occur not only between wives (Hagar vs. Sarah, Rachel vs. Leah) but also in their descendants. I would wager that polygamy, when legally possible, is not adultery—but I wouldn't suggest running out to take extra wives or husbands either.

Examples from the Bible

The most famous example of adultery in the Bible is that of David seducing Bathsheba. Not only does he commit adultery, but when she becomes pregnant from their infidelity, David tries to trick her husband into sleeping with her. Clearly, he planned to lie about the paternity of the baby (another sin). When this fails, he has Bathsheba's husband killed. The problem with most sins is that they lead us to commit other sins!


  1. "The History of DNA Testing". DNA Diagnostics Center. 2015
  2. Bunte, Matt V. "Is Polygamy Adulterous". MLive. June 2013
  3. "What Does Scripture Say About Polygamy". Let Us Reason Ministries. 2015
  4. Cocherell, B.L. "Polygamy". 2015

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Author Image Author Image I love reading the Word of God. With prayer God's Word reveals so much: from comfort to temperance, from perspective to affirmation. Digging into the depths of the Word, cross-referencing history, language and time differences, is a passion of mine. In March of 2015 I decided to go back through the Bible doing an in depth study on each section I read. Eventually I decided to share my journal of notes as I partake in this journey. I hope you are blessed by God and inspired to pursue a deeper relationship with Him. I love reading and learning about God, nature, and science. I am interested in how it all connects. The Creator's fingerprints are all over his creation. We can learn so much about Him and how we came to be by exploring the world around us. Join me as I explore the world and draw closer to the One who created it all.
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