Deuteronomy 16:13-17

Observe the Feast-of-Booths for seven days when you gather the harvest from your threshing-floor and your wine-vat. Rejoice at your festival: you, your son, your daughter, your servant, your maid, the Levite, the foreigner, and the orphans and widows who live in your neighborhood. Celebrate the Feast to GOD, your God, for seven days at the place GOD designates. GOD, your God, has been blessing you in your harvest and in all your work, so make a day of it—really celebrate! All your men must appear before GOD, your God, three times each year at the place he designates: at the Feast-of-Unraised-Bread (Passover), at the Feast-of-Weeks, and at the Feast-of-Booths. No one is to show up in the Presence of GOD empty-handed; each man must bring as much as he can manage, giving generously in response to the blessings of GOD, your God. * * *