Leprosy

Leprosy in Scripture is the traditional English name for a condition, or family of conditions, that made a person ritually unclean and, in the case of skin disease, cut them off from the community. Linguistically and historically, the Hebrew term behind the older English “leprosy” (tsara'at) and the Greek lepra of the New Testament are not the same as modern Hansen's disease; the biblical vocabulary covers a broad range of visible skin disorders and, in Leviticus, also growths in cloth and plastered houses. The text of Leviticus 13 therefore places diagnosis in the hands of the priest, who examines and declares a person clean or unclean rather than treating the condition medically.

The social consequence is stated bluntly: “All the days in which the plague is in him he shall be unclean. He is unclean. He shall dwell alone. His dwelling shall be outside of the camp” (Leviticus 13:46). Uncleanness here is a ritual and communal category, not a verdict on the person's character; the same chapter provides for examination, isolation, and eventual restoration to the assembly. Being shut out from worship and family is the heart of the hardship the word describes.

Several narratives turn on the condition. In Numbers 12, Miriam and Aaron speak against Moses' authority, and the account ends with Miriam afflicted with a skin disease and shut outside the camp for seven days; the passage given stresses God's defense of Moses as uniquely faithful in his house (Numbers 12:7-8). In 2 Kings 5, Naaman is told to wash in the Jordan seven times, and his “flesh was restored like the flesh of a little child, and he was clean” (2 Kings 5:14); Gehazi's greed then brings the disease on himself and his offspring (2 Kings 5:27). In the Gospels Jesus cleanses lepers and sends them to the priest with the offering Moses commanded (Matthew 8:4; Luke 5:14), commissions his disciples to “cleanse the lepers” (Matthew 10:8), and is found at table in the house of Simon the leper (Mark 14:3). In these passages the disease marks exclusion, and cleansing means restoration to God and community.

Christian traditions read the term differently in emphasis. Patristic and later Western preachers commonly treated leprosy as a figure of sin and its healing as a picture of grace and forgiveness, drawing on the Miriam and Gehazi stories; other readers keep the emphasis on ritual purity, social exclusion, and the church's ministry of healing, and press the point that the biblical text itself does not equate illness with personal guilt. Critical scholarship stresses that the biblical category is not a clinical diagnosis and that the Gospel healings are presented as signs of the kingdom, while confessional readings in many churches hear in the command to show oneself to the priest a pattern for reconciliation and the restoration of the outcast.

AI-generated reference entry, grounded in the passages where this term appears — history and Scripture stated as such, interpretation labeled as interpretation. Not a substitute for the text itself.