Daniel 6:19-20

Evidently, one night in the lions’ den was the minimum sentence the law required, because early the next morning Darius set out to free Daniel-if he had survived. Uncertain about the prophet’s fate, the king called to Daniel, whom he could not see, hoping that he might still be alive. Daniel had apparently told Darius previously that he worshipped the living God. Now Darius wanted to know if this God had been able to save His servant from the lions (cf. Daniel 6:16; Daniel 3:17).