en_tn_lite_do_not_use/lev/18/24.md

the nations are defiled

This refers to the people-groups already living in Canaan. AT: "the people of the nations defiled themselves" (See: rc://en/ta/man/translate/figs-metonymy)

from before you

"when you enter their land the nations will be pushed out"

The land became defiled

"The sins of the people made their land unclean"

the land vomited out its inhabitants

AT: "the land rejected those living there" or "I will expel them from the land" (See: rc://en/ta/man/translate/figs-personification)