Most miss this guy's biblical references because of the high degree of biblical illiteracy in this country. Who is one of Saddam's (unrestrained) heroes? And didn't that 'hero' spend a period of time under the thumb of God in insanity because of his arrogance? Clearly this use of words was designed for Saddam's consumption.
I have no idea if that story is preserved in any way in the Koran. I don't think it is.
Therefore, the most thorough insight into the mind and life of Nebu is our book of Daniel. Saddam would be well advised to take heed.