en_tn/lev/04/15.md

will lay their hands on the head

This is a symbolic action that identifies the people with the animal they are offering. In this way the people are offering themselves to Yahweh through the animal. See how you translated a similar phrase in Leviticus 1:4. (See: rc://en/ta/man/translate/translate-symaction)

the bull will be killed

This can be stated in active form. AT: "and they will kill the bull" (See: rc://en/ta/man/translate/figs-activepassive)