Clean and Unclean
Overview
- Testament: Old
- Book: Leviticus
- Chapters: Leviticus 11–15
- Summary: Leviticus 11–15 defines clean and unclean foods, skin diseases, bodily discharges, and mold; the system marked the boundary between the holy and the common.
Details
Leviticus 11 lists clean and unclean animals — land animals with split hooves and chewing cud are clean; sea creatures with fins and scales are clean; most birds of prey and insects are unclean, with the exception of certain locusts. The categories are not explained in terms of hygiene but in terms of holiness: “I am the LORD your God: ye shall therefore sanctify yourselves, and ye shall be holy; for I am holy” (11:44).
Chapters 12-15 address other forms of uncleanness: childbirth (Leviticus 12), skin diseases loosely translated as “leprosy” (13-14), and bodily discharges (15). Each form of uncleanness required a period of isolation and purification rituals before the person could re-enter the community and approach the Tabernacle. Priests were responsible for diagnosing and certifying cleanness.
The system served multiple functions: it created a boundary between Israel and surrounding cultures, maintained the distinction between holy (approaching God) and common (ordinary life), and provided a framework in which physical conditions could have spiritual significance. In the New Testament, Jesus regularly crosses clean/unclean boundaries — touching lepers, speaking to the bleeding woman, raising the dead — as a sign that the Kingdom of God overturns ritual exclusion.
Important Verses
“I am the LORD your God: ye shall therefore sanctify yourselves, and ye shall be holy; for I am holy.” — Leviticus 11:44
Cross-References
- Blood and Atonement — The broader purity theology of Leviticus
- Holiness Code — The moral dimension of holiness in Leviticus 17-26
- Related books: Leviticus, Mark 1 (Jesus and lepers), Acts 10 (vision of clean/unclean), Romans 14
Notes
- Peter’s vision in Acts 10 of “unclean” animals with a command to eat directly applies Leviticus 11 language to the Gentile inclusion question.
- The clean/unclean system is not abolished by Jesus but fulfilled — he touches the unclean and makes them clean rather than becoming unclean himself.
- Modern interpreters debate whether the categories had hygienic, symbolic, or social boundary functions — likely all three simultaneously.