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)