en_tn_condensed/deu/21/23.md

bury him the same day

"bury him on the same day as when you execute him"

for whoever is hanged is cursed by God

This can be stated in active form. Possible meanings are 1) "because God curses everyone whom people hang on trees" and 2) "for people hang on trees those whom God has cursed." (See: rc://en/ta/man/jit/figs-activepassive)

You must not defile the land

Leaving the body on the tree would defile the land.