Leviticus 23:6-10 English Standard Version (ESV)

6. And on the fifteenth day of the same month is the Feast of Unleavened Bread to the Lord; for seven days you shall eat unleavened bread.

7. On the first day you shall have a holy convocation; you shall not do any ordinary work.

8. But you shall present a food offering to the Lord for seven days. On the seventh day is a holy convocation; you shall not do any ordinary work.”

9. And the Lord spoke to Moses, saying,

10. “Speak to the people of Israel and say to them, When you come into the land that I give you and reap its harvest, you shall bring the sheaf of the firstfruits of your harvest to the priest,

Leviticus 23