The cities in Canaan that Yahweh is giving to the people is spoken of as if the cities were the people's inheritance. (See: [[rc://en/ta/man/jit/figs-metaphor]])
"you must not let any living thing stay alive." This can be stated in positive form. Alternate translation: "you must kill every living thing" (See: [[rc://en/ta/man/jit/figs-litotes]])