en_tn/deu/18/09.md

learn to observe the disgusting things

The religious activities of the surrounding nations are hated by God. He sees them as awful evil activities.

There must not be found among you

AT: "There must not be among you" (See: rc://en/ta/man/translate/figs-activepassive)

makes his son or his daughter to pass through the fire

AT: "sacrifices his children by fire on an altar" (See: rc://en/ta/man/translate/figs-idiom)

augury

the use of magic to predict the future

enchanter, or any sorcerer, any charmer...

different types or kinds of people practicing magic forbidden by God.