Leviticus 18:13
Thou shalt not uncover the nakedness of thy mother’s sister: for she is thy mother’s near kinswoman.
Leviticus 18:13 (KJV)
Context
God gave the laws in Leviticus to guide the Israelites in holy living. Leviticus 18 lists forbidden sexual relationships, including the one in this verse. The command here forbids a man from having sexual relations with his mother’s sister, his maternal aunt. This law is part of a larger set of rules given by God through Moses to set Israel apart as a holy people. The surrounding chapters show that these commands were meant to protect the community from practices that would defile them and dishonor God. The prohibition is not isolated; it belongs to a careful list that defined the boundaries of family life for the nation.
Meaning
The phrase “uncover the nakedness” is a respectful way of speaking about sexual relations. The reason given is that the mother’s sister is her “near kinswoman,” a close blood relative. The Latin Vulgate, an early Latin translation, says she is “the flesh of your mother,” showing how close this bond is. Such a relationship would be incestuous and is therefore forbidden. The wording points to the deep biological and familial connection, making the prohibition clear and serious. This command preserves the sanctity of the family structure and maintains appropriate boundaries within relationships.
Biblical connections
The previous verse, Leviticus 18:12, forbids relations with a father’s sister. Both verses use the same wording and reasoning. Together they show a clear principle: sexual relations with close blood relatives, especially aunts, are not allowed. This law protected the family and kept the people of Israel distinct from surrounding nations. The consistent pattern in these verses reveals God’s care for the family structure and His desire to prevent harm within it. The parallel wording in both verses reinforces that the rule is deliberate and applies equally to both sides of the family.
Application
Christians are not under the ceremonial laws of the Old Testament, but the moral principles behind them remain. Jesus said He came to fulfill the law (Matthew 5:17), and the New Testament calls believers to sexual purity. This verse reminds us that God cares about the boundaries He sets for family and marriage. It also shows that some actions are always wrong because they violate the order God created. We are called to honor God with our bodies and to keep our relationships pure, reflecting His holiness in our lives. These boundaries are not arbitrary; they guard the trust and safety that families need.
Reflection
This command may seem distant from daily life, but its principle is timeless. God designed the family to be a place of safety and trust. When we honor His boundaries, we protect that design. We can thank God for His wisdom in giving clear rules that guard our relationships and keep us holy. Let us consider how we can uphold these boundaries in our own families and communities, trusting that God’s commands are for our good.

