Nebuchadnezzar understands the power of a holy God

"Nebuchadnezzar responded and said, “Blessed be the God of Shadrach, Meshach and Abed-nego, who has sent His angel and delivered His servants who put their trust in Him, violating the king’s command, and yielded up their bodies so as not to serve or worship any god except their own God. Therefore I make a decree that any people, nation or tongue that speaks anything offensive against the God of Shadrach, Meshach and Abed-nego shall be torn limb from limb and their houses reduced to a rubbish heap, inasmuch as there is no other god who is able to deliver in this way.” (Daniel 3:28-29)

THERE IS NO OTHER GOD. (He is holy and true).

There is no other God ABLE TO DELIVER. (Jesus saves)

There is no other God able to deliver IN THIS WAY. (His power is unsurpassed).

So what does all this mean?

"The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel." Mark 1:15