what did nebuchadnezzar fail to understand that even his advisors realized

Nebuchadnezzar failed to understand that his advisors, despite their claimed wisdom and powers, could not actually interpret or reveal the meaning of his dream because true revelation comes only from God. The advisors themselves admitted that no one on earth could tell the king's matter, and only the gods—whose dwelling is not with flesh—could reveal such truths. Even though the advisors were skilled in astrology, magic, and divination, they lacked the divine insight necessary for interpreting the king's dream. Nebuchadnezzar realized this and put them to the test by demanding that they reveal both the dream and its interpretation, a request they deemed impossible without divine intervention. Thus, he failed to recognize initially that human wisdom alone was insufficient to comprehend divine mysteries, a fact even his advisors acknowledged.