Leviticus 23:8

But you shall present an offering by fire to the Lord for seven days; on the seventh day there shall be a holy convocation; you shall not do any laborious work [on that day].’”

Treasury of Scripture Knowledge

Summary

But ye shall offer an offering made by fire unto the LORD seven days: in the seventh day is an holy convocation: ye shall do no servile work therein.

Bible References

General references

Exodus 13:6
For seven days you shall eat unleavened bread, and on the seventh day there shall be a feast to the Lord.
Leviticus 23:35
The first day is a holy convocation (calling together); you shall not do any laborious work [on that day].
Numbers 28:16
‘The Lord’s Passover shall be on the fourteenth day of the first month [of each year].