King James Version
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.English Standard Version
Then the king, when he heard these words, was much distressed and set his mind to deliver Daniel. And he labored till the sun went down to rescue him.Catholic Public Domain Version
Now when the king had heard these words, he was greatly grieved, and, on behalf of Daniel, he set his heart to free him, and he labored even until sunset to rescue him