Deuteronomy 16:8-10

New Century Version

⁸ Eat bread made without yeast for six days. On the seventh day have a special meeting for the Lord your God, and do not work that day.

The Feast of Weeks

⁹ Count seven weeks from the time you begin to harvest the grain, ¹⁰ and then celebrate the Feast of Weeks for the Lord your God. Bring an offering as a special gift to him, giving to him just as he has blessed you.