Deuteronomy 16:9-11

9Count seven weeks from the first day that you bring in crops of grain from your fields.

10Then eat the Feast of Weeks to worship the Lord your God. Bring the gifts that you want to offer to him. Bring gifts that show how much he has blessed you.

11You and your family will be happy to worship the Lord your God, at the special place that he chooses. Enjoy time together with your children, your servants and the Levites who live in your town. Also join with the foreign people who live among you, with widows, and children who have no family. Worship God happily together.