16 Then the king commanded, and they brought Daniel, and cast him into the den of lions. Now the king spoke and said to Daniel, Your God whom you serve continually, he will deliver you. 17 A stone was brought, and laid on the mouth of the den; and the king sealed it with his own signet, and with the signet of his lords; that nothing might be changed concerning Daniel.

18 Then the king went to his palace, and passed the night fasting; neither were instruments of music brought before him: and his sleep fled from him. 19 Then the king arose very early in the morning, and went in haste to the den of lions. 20 When he came near to the den to Daniel, he cried with a lamentable voice; the king spoke and said to Daniel, Daniel, servant of the living God, is your God, whom you serve continually, able to deliver you from the lions? 21 Then said Daniel to the king, O king, live forever. 22 My God has sent his angel, and has shut the lions’ mouths, and they have not hurt me; because as before him innocence was found in me; and also before you, O king, have I done no hurt.

Matthew Henry's Commentary on Daniel 6:16-22

Commentary on Daniel 6:11-17

(Read Daniel 6:11-17)

It is no new thing for what is done faithfully, in conscience toward God, to be misrepresented as done obstinately, and in contempt of the civil powers. Through want of due thought, we often do that which afterwards, like Darius, we see cause a thousand times to wish undone again. Daniel, that venerable man, is brought as the vilest of malefactors, and is thrown into the den of lions, to be devoured, only for worshipping his God. No doubt the placing the stone was ordered by the providence of God, that the miracle of Daniel's deliverance might appear more plain; and the king sealed it with his own signet, probably lest Daniel's enemies should kill him. Let us commit our lives and souls unto God, in well-doing. We cannot place full confidence even in men whom we faithfully serve; but believers may, in all cases, be sure of the Divine favour and consolation.

Commentary on Daniel 6:18-24

(Read Daniel 6:18-24)

The best way to have a good night, is to keep a good conscience. We are sure of what the king doubted, that the servants of the living God have a Master well able to protect them. See the power of God over the fiercest creatures, and believe his power to restrain the roaring lion that goeth about continually seeking to devour. Daniel was kept perfectly safe, because he believed in his God. Those who boldly and cheerfully trust in God to protect them in the way of duty, shall always find him a present help. Thus the righteous is delivered out of trouble, and the wicked cometh in his stead. The short triumph of the wicked will end in their ruin.