Adulterous relationships, as defined in the Bible, refer to sexual relations where at least one of the involved parties is married to someone else. This act is consistently condemned throughout Scripture as a violation of God's commandments and a breach of the marital covenant.

Biblical Definition and Commandments

The concept of adultery is first introduced in the Ten Commandments, where it is explicitly prohibited: "You shall not commit adultery" (Exodus 20:14). This commandment underscores the sanctity of marriage and the importance of fidelity within the marital relationship.

Old Testament Context

In the Old Testament, adultery is not only a personal sin but also a social and communal offense. Leviticus 20:10 prescribes severe consequences for those caught in adultery: "If a man commits adultery with another man's wife—with the wife of his neighbor—both the adulterer and the adulteress must surely be put to death" . This reflects the gravity with which the act was viewed in ancient Israelite society.

The account of David and Bathsheba (2 Samuel 11) serves as a poignant narrative illustrating the destructive consequences of adultery. King David's adulterous relationship with Bathsheba leads to a series of tragic events, including deceit, murder, and the eventual death of their child, highlighting the far-reaching impact of such sin.

Wisdom Literature

The Book of Proverbs offers numerous warnings against adultery, emphasizing its destructive nature. Proverbs 6:32 states, "But he who commits adultery lacks judgment; whoever does so destroys himself" . The wisdom literature often portrays adultery as a path leading to personal ruin and societal discord.

New Testament Teachings

In the New Testament, Jesus reaffirms the prohibition against adultery and expands its understanding. In the Sermon on the Mount, He teaches, "But I tell you that anyone who looks at a woman to lust after her has already committed adultery with her in his heart" (Matthew 5:28). This teaching emphasizes the importance of purity not only in actions but also in thoughts and intentions.

The account of the woman caught in adultery (John 8:1-11) demonstrates Jesus' approach to sin and forgiveness. While He does not condone the act, He offers mercy and calls for repentance, saying, "Go and sin no more" (John 8:11).

Apostolic Writings

The apostolic writings continue to uphold the sanctity of marriage and the prohibition of adultery. The Apostle Paul, in his letters, frequently warns against sexual immorality, including adultery. In 1 Corinthians 6:9-10, he lists adulterers among those who will not inherit the kingdom of God, urging believers to live in holiness and honor.

Spiritual Symbolism

Adultery is also used metaphorically in the Bible to describe unfaithfulness to God. The prophets often liken Israel's idolatry to adultery, portraying the nation as an unfaithful spouse. For instance, in Jeremiah 3:8-9, God speaks of Israel's spiritual adultery through idol worship, illustrating the seriousness of turning away from Him.

Moral and Ethical Implications

Adulterous relationships are seen as a violation of the divine order and a betrayal of trust. They undermine the family unit, which is foundational to society, and disrupt the covenantal relationship established in marriage. The Bible calls believers to uphold the sanctity of marriage, to remain faithful to their spouses, and to seek forgiveness and restoration when they fall short.

In summary, adulterous relationships are consistently condemned in Scripture as contrary to God's design for marriage and human relationships. The Bible calls for fidelity, purity, and repentance, emphasizing the importance of maintaining the integrity of the marital covenant.