Dan 3:19

“"And commanded that they should heat the furnace one seven times more." He bids the vast furnace be heated one seven times more, as if he were already overcome by them. In earthly things, then, the king was superior; but in faith toward God the three youths were superior. Tell me, Nebuchadnezzar, with what purpose you order them to be cast into the fire bound? Is it lest they might escape, if they should have their feet unbound, and thus be able to extinguish the fire? But thou doest not these things of thyself, but there is another who worketh these things by thy means.”

“Verse 19. "Then Nebuchadnezzar was filled with rage, and the aspect of his countenance was wholly altered." In certain Psalms the titles contain the notation; "On behalf of those who are to be wholly altered." And so the expression "wholly altered" is ambiguous, comprising both the idea of change for the worse or change for the better. Now of course the alteration of Nebuchadnezzar's visage cannot be reconciled with a favorable sense. And after all there are some authorities who refer even the Psalm-titles to a change for the worse, on the ground that those who by nature have known God have been changed by the vexation and fury of their mind to a position of hostility towards Christ and His saints.”