the result of external processes but comes from within (because it is caused by immoral or unethical behavior),46 the rabbis ruled that impurity can affect the outside of a vessel without contaminating the inside:47 … a utensil whose outer parts are made unclean—its inner part is not made unclean. (m. Kelim 25:4). A utensil, the outer parts of which have been made unclean with liquids—the outer parts are unclean. Its inside, its rims, hangars, and handles are clean. [If] its inside is made unclean,