Deuteronomy 16:15

15 Seven days shalt thou keep a feast to the Lord thy God in the place which the Lord thy God shall choose for himself; and if the Lord thy God shall bless thee in all thy fruits, and in every work of thy hands, then thou shalt rejoice.

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 Thou shalt keep for thyself the feast of tabernacles seven days, when thou gatherest in from thy corn-floor and thy wine-press.

14 And thou shalt rejoice in thy feast, thou, and thy son, and thy daughter, thy man-servant, and thy maid-servant, and the Levite, and the stranger, and the orphan, and the widow that is in thy cities.

15 Seven days shalt thou keep a feast to the Lord thy God in the place which the Lord thy God shall choose for himself; and if the Lord thy God shall bless thee in all thy fruits, and in every work of thy hands, then thou shalt rejoice.

16 Three times in the year shall all thy males appear before the Lord thy God in the place which the Lord shall choose in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles: thou shalt not appear before the Lord thy God empty.

17 Each one according to his ability, according to the blessing of the Lord thy God which he has given thee.