Deuteronomy 16:15

15 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!

Deuteronomy 16:15 Meaning and Commentary

Deuteronomy 16:15

Seven days shalt thou keep a solemn feast unto the Lord thy
God
The feast of tabernacles still spoken of:

in the place which the Lord thy God shall choose:
the city of Jerusalem:

because the Lord thy God shall bless thee in all thy increase, and in
all the works of thine hands;
both in the increase of their fields, vineyards, and oliveyards, and also in their several handicraft trades and occupations they were employed in; so Aben Ezra interprets all the works of their hands of merchandise and manufactories:

therefore thou shalt surely rejoice;
extremely, heartily, and sincerely, and not fail to express joy on this occasion, and manifest it by a generous freewill offering to the Lord, and a bountiful entertainment for himself, his family, friends, and others.

Deuteronomy 16:15 In-Context

13 Observe the Feast-of-Booths for seven days when you gather the harvest from your threshing-floor and your wine-vat.

14 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.

15 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!

16 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;

17 each man must bring as much as he can manage, giving generously in response to the blessings of God, your God.