Moral and ethical laws in the Bible refer to the principles and guidelines that govern right behaviour and how individuals should treat one another in accordance with God's will. These laws are often seen as timeless, reflecting God's character and providing a standard for righteous living.

They are found throughout the Old and New Testaments and are expressed both in specific commandments and broader principles. Central to these laws is the command to love God and love others, which forms the foundation of moral behaviour. Key examples include the Ten Commandments (Exodus 20), which outline duties to God (such as not worshipping idols or using God's name in vain) and duties to others (such as honouring parents, not murdering, committing adultery, stealing, or bearing false witness).

In addition to the Ten Commandments, the moral and ethical laws found in the Bible emphasise justice, mercy, and compassion. The prophets, for instance, called for fair treatment of the poor, the widows, orphans, and strangers, as well as the importance of integrity and honesty in dealings with others. 

Jesus' teachings in the New Testament, particularly in the Sermon on the Mount (Matthew 5-7), further expand on these principles, urging followers to love their enemies, forgive others, and practice humility and purity of heart. Ultimately, moral and ethical laws in the Bible aim to cultivate a society that reflects God's holiness and love, fostering peace, justice, and reconciliation among people.