Here is, I. The melancholy night which the king had, upon Daniel's account, v. 18. He had said, indeed, that God would deliver him out of the danger, but at the same time he could not forgive himself for throwing him into the danger; and justly might God deprive him of a friend whom he had himself used so barbarously. He went to his palace, vexed at himself for what he had done, and calling himself unwise and unjust for not adhering to the law of God and nature with a non obstante—a negative to the law of the Medes and Persians. He ate no supper, but passed the night fasting; his heart was already full of grief and fear. He forbade the music; nothing is more unpleasing than songs sung to a heavy heart. He went to bed, but got no sleep, was full of tossings to and fro till the dawning of the day. Note, the best way to have a good night is to keep a good conscience, then we may lie down in peace.