en_tn_condensed/lev/05/12.md

He must bring it

"He must bring the fine flour"

a representative offering

The handful that the priest burns on the altar represents the entire offering. This means the whole offering belongs to Yahweh. See how you translated this in Leviticus 2:2.

on top of the offerings made by fire for Yahweh

This can be stated in active form. AT: "on top of the burnt offerings to Yahweh" (See: rc://en/ta/man/translate/figs-activepassive)

will make atonement

The abstract noun "atonement" can be stated as a verb. AT: "will atone" (See: rc://en/ta/man/translate/figs-abstractnouns)

that person will be forgiven

This can be stated in active form. AT: "Yahweh will forgive that person's sins" (See: rc://en/ta/man/translate/figs-activepassive)