Leviticus 16:29-31

“This law will always continue for you: On the tenth day of the seventh month, you must deny yourself and you must not do any work. The travelers or foreigners living with you must not work either. It is on this day that the priests will make you clean so you will belong to the LORD again. All your sins will be removed. This is a very important day of rest for you, and you must deny yourselves. This law will continue forever.