3 occurrences in 3 dictionaries

Reference: Clean and Unclean

American

Terms often used in the Bible in a ceremonial sense; assigned to certain animals, and to men in certain cases, by the law of Moses, Le 11-15; Nu 19; De 14. A distinction between clean and unclean animals existed before the deluge, Ge 7:2. The Mosaic law was not merely arbitrary, but grounded on reasons connected with animal sacrifices, with health, with the separation of the Jews from other nations, and their practice of moral purity, Le 11:43-45; 20:24-26; De 14:2-3,21. The ritual law was still observed in the time of Christ, but under the gospel is annulled, Ac 10:9-16.

Ceremonial uncleanness was contracted by the Jews in various ways, voluntarily and involuntarily. It was removed, usually at the evening of the same day, by bathing. In other cases a week, or even forty or fifty days, and some sacrificial offerings, were required.

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Hastings

CLEAN AND UNCLEAN

Introductory.

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Morish

See ANIMALS.