Deuteronomy 16:15

15 Seven days shalt thou celebrate a solemn feast unto the LORD thy God in the place which the LORD shall choose; because the LORD thy God shall have blessed thee in all thy fruits and in all the works of thine hands, therefore, thou shalt truly be glad.

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 observe the solemn feast of the tabernacles seven days after thou hast gathered in the harvest of thy threshing floor and thy winepress.

14 And thou shalt rejoice in thy solemn feast, thou and thy son and thy daughter and thy manslave and thy maidslave and the Levite and the stranger and the fatherless and the widow, that are within thy gates (or within thy towns).

15 Seven days shalt thou celebrate a solemn feast unto the LORD thy God in the place which the LORD shall choose; because the LORD thy God shall have blessed thee in all thy fruits and in all the works of thine hands, therefore, thou shalt truly be glad.

16 Three times each year shall all thy males appear before the LORD thy God in the place which he shall choose: in the solemn feast of unleavened bread and in the solemn feast of weeks and in the solemn feast of the tabernacles. And they shall not appear before the LORD empty,

17 Each man with the gift of his hand, according to the blessing of the LORD thy God, which he shall have given thee.