Daniel 6:14 in the World English Bible
Then the king, when he heard these words, was very displeased, and set his heart on Daniel to deliver him; and he labored until the going down of the sun to rescue him.
Context
13 Then answered they and said before the king, That Daniel, which is of the children of the captivity of Judah, regardeth not thee, O king, nor the decree that thou hast signed, but maketh his petition three times a day.
14 Then the king, when he heard these words, was sore displeased with himself, and set his heart on Daniel to deliver him: and he laboured till the going down of the sun to deliver him.
15 Then these men assembled unto the king, and said unto the king, Know, O king, that the law of the Medes and Persians is, That no decree nor statute which the king establisheth may be changed.