Leviticus 8:17

8:17 but the rest of the bull – its hide, its flesh, and its dung – he completely burned up outside the camp just as the Lord had commanded Moses.

Leviticus 16:31

16:31 It is to be a Sabbath of complete rest for you, and you must humble yourselves. It is a perpetual statute.

Leviticus 26:35

26:35 All the days of the desolation it will have the rest it did not have on your Sabbaths when you lived on it.