"Ye have heard that it was said by them of old time, Thou shalt not commit adultery:Committing adultery is one of the greatest sins. Only the sins of murder and denying of the Holy Ghost are greater. Being faithful in marriage includes keeping ones thoughts and words clean and is part of God's Law of Chastity.
"But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart" (Matt 5:27-28).
Although adultery is a grave sin a person can repent and be cleansed through the Atonement of Jesus Christ. In these Latter-days the Lord revealed the following:
"Thou shalt love thy wife with all thy heart, and shalt cleave unto her and none else.To cleave to one's spouse means to join together. In your family your spouse should be your first priority:
"And he that looketh upon a woman to lust after her shall deny the faith, and shall not have the Spirit; and if he repents not he shall be cast out.
"Thou shalt not commit adultery; and he that committeth adultery, and repenteth not, shall be cast out.
"But he that has committed adultery and repents with all his heart, and forsaketh it, and doeth it no more, thou shalt forgive." (D&C 42:22-25).
"The covenant between Adam and Eve is summarized in Genesis 2:24: 'Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.' [Gen. 2:24] Referring to this scripture, President Spencer W. Kimball commented, 'Do you note that? She, the woman, occupies the first place. She is preeminent, even above the parents who are so dear to all of us. Even the children must take their proper but significant place....' (Ensign, Mar. 1976, p. 72.)Marital infidelity is often the result of selfishness and can be the manifestation of a sexual addiction, but there is hope for those who humble themselves and turn to the Lord.
"Marriage is not just a social contract between man and woman; it involves God as well. God is a witness to all marriage agreements and insists that couples should be devoted and completely faithful to each other." (James M. Harper, "'A Man … Shall Cleave unto His Wife': Marriage and Family Advice from the Old Testament," Ensign, Jan 1990, 28).
Learn how you can have an eternal family and increase the love in your marriage with these 12 Ways to Have a Happy Marriage.