Leviticus 16:30-32 New International Version Anglicized (NIVUK)

30. because on this day atonement will be made for you, to cleanse you. Then, before the Lord, you will be clean from all your sins.

31. It is a day of sabbath rest, and you must deny yourselves; it is a lasting ordinance.

32. The priest who is anointed and ordained to succeed his father as high priest is to make atonement. He is to put on the sacred linen garments

Leviticus 16