Leviticus 23:3-8

3“Work may be done for six days, but on the seventh day there is to be a Sabbath of complete rest, a sacred assembly. You are not to do any work; it is a Sabbath to the Lord wherever you live.

4“These are the Lord’s appointed times, the sacred assemblies you are to proclaim at their appointed times.

5The Passover to the Lord comes in the first month, at twilight on the fourteenth day of the month.

6The Festival of Unleavened Bread to the Lord is on the fifteenth day of the same month. For seven days you must eat unleavened bread.

7On the first day you are to hold a sacred assembly; you are not to do any daily work.

8You are to present a food offering to the Lord for seven days. On the seventh day there will be a sacred assembly; do not do any daily work.”