Deuteronomy 16:14

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. Deuteronomy 16:11