This can be translated in active form. AT: "They must carry away the stones, timber, and all the plaster in the house" (See: [[rc://en/ta/man/translate/figs-activepassive]])
A person whom other people may not touch and who is not acceptable for God's purposes because he has entered the house is spoken of as if the person were physically unclean. (See: [[rc://en/ta/man/translate/figs-metaphor]])