Deuteronomy 16:14

And thou shalt rejoice in thy feast, thou, and thy son, and thy daughter, and thy manservant, and thy maidservant, and the Levite, the stranger, and the fatherless, and the widow, that are within thy gates.

And thou shalt rejoice in thy feast,.... At this feast of tabernacles and ingathering of the fruits of the earth, in token of gratitude and thankfulness for the goodness of God bestowed on them; the Targum of Jonathan adds, with the flute and the pipe, making use of instrumental music to increase the joy on this occasion:

thou and thy son, &c. See Gill on "Deuteronomy 16:11"