Only God could save Daniel from the lions. My sent his angel, and he shut the of the lions. God had protected Daniel. In the end times God will protect his people throughout persecution and death threats. As they stay faithful to true worship of God, God will stay faithful to them.
Justice is short and swift.
These men had heartlessly condemned Daniel to death merely for their personal gain. There was no mercy for them and their families. The lions them and crushed all their bones. God does not want us to worship him through coercion. But one can understand Darius' enthusiasm under the circumstances.