Charles Ellicott Commentary Isaiah 5:12

"And the harp and the lute, the tabret and the pipe, and wine, are [in] their feasts; but they regard not the work of Jehovah, neither have they considered the operation of his hands." — Isaiah 5:12 (ASV)

The harp, and the viol.—Here again the fashions of Judah followed those of Samaria, so closely indeed that Isaiah addresses the rulers of his own city as “the drunkards of Ephraim” (Isaiah 28:1; Amos 6:5). The list of instruments is fairly represented by the English words, but lute (or hand-harp), cymbal, timbrel (or tambourine), and flute would come somewhat closer to the Hebrew.

They regard not the work of the Lord.—The life of luxury was then, as ever, one of practical atheism. Those who so lived did not see, never do see, any Divine plan or order in the world around them. They anticipated, in their swine-like greed, the baser types of the school of Epicurus.