If our God whom we serve is able to deliver us from the furnace of blazing fire and out of your hand, O king, let him deliver us. But if not, be it known to you, O king, that we will not serve your gods and we will not worship the golden statue that you have set up.
King Nebuchadnezzar is a man who thinks that he understands power and wields it accordingly. He expects people to respond to the exercise of that power with fear and obedience. When Shadrach, Meshach, and Abednego are brought before the king and the king threatens them with the furnace they do not submit.
If someone is willing to die rather than submit in fear to the worship of a false god; If someone is willing to die rather than submit in fear to systemic injustice, then what is left for one who rules by power and fear? Those who oppose must be destroyed.
And here his power to destroy is rendered null and void.
And in the end who had power all the time? God.
All the powerful in this world have at their disposal are the tools of fear and intimidation, threats and prejudices, false hope and false promises. By these they seek to coerce us to their will and use us for their selfish and divisive ends.
But our God is a God of true promise, of true hope, of righteousness and justice.