Deuteronomy 16:7-9

New Catholic Bible

⁷ Roast the lamb and eat it in the place that the Lord, your God, will choose. Then, in the morning, return to your homes. ⁸ For six days you are to eat unleavened bread. Then, on the seventh day, you will hold a solemn assembly to the Lord, your God, and you are to do no heavy labor.

Feast of Weeks. ⁹ Count off seven weeks from the time that you put the sickle to the standing grain. You are to count off seven weeks,