Matthew Poole and continuators on Daniel 6:18

18 Then the king went to his palace, and passed the night fasting : neither were instruments of musick brought before him, and his sleep went from him.

Yea, and without instruments of Musick, and Sleep. The King was in perplexity, he was under great Conviction that he had done very dishonourably and cruelly, by hearkening to the counsel of his wicked Courtiers, he should have rescinded his rash decree, and rated them for their Barbarity against Daniel, and have over-ruled them, and let him out; he is convinced of all this, and grieves for it, but to little purpose; many are displeased with themselves for their Vices, yet are drawn away with them; and upon point of honour or other carnal ground, never come to true Repentance, which consists in a change of heart and life. Herod was a like troubled for Iohn Baptist, but for all that, for his Oath sake to a wanton wretch, and for the Companies sake, he sent and beheaded him, Math. 14 9.

Marginal references: Or, table.