New Defender's Study Bible Notes
3:18 not serve thy gods. This is a severe indictment of many modern Christian leaders who will not take a stand against evolutionary gods today—not because of a threatened furnace but because of fear of loss of academic standing.
3:25 the Son of God. God is, indeed, able to “deliver us” (Daniel 3:17), sending “a son of God” (literal reading), one of His mighty angels, to defend and protect His children, if He so wills (note Psalm 34:7). This has often happened, even when they were not aware of his presence. In this special case, this Son of God may even have been the Angel of the Lord, the pre-incarnate Christ.
3:28 delivered his servants. Nebuchadnezzar came to realize that God not only could reveal secrets but could also deliver those who trusted in Him; nevertheless, he still thought of Him as only “the God of Shadrach, Meshach, and Abednego.” One must not only acknowledge God as a great God, but as the only true God of creation and as one’s personal Redeemer, if he would be saved.