You, O king, the king of kings, to whom the God of heaven has given the kingdom, the power, and the might, and the glory,
Nebuchadnezzar worshipped images, so God sent him a dream of a great statue to show him what his idols truly were: mere dreams, creatures of fancy that cost treasure and labor but signified nothing. The King had shown kindness to this poor prophet, and now received a prophet's reward that no money could buy.
AI summary
Commenting on Daniel 2:31-45
Thou, O king, art a king of kings,.... Having many kings subject and tributary to him, or would have; as the kings of Judah, Ammon, Moab, and others, and who were even his captives and prisoners; see Jer 52:32. Jarchi and Saadiah join this with the next clause, "the God of heaven", and interpret it of him thus, thou, O King Nebuchadnezzar, "the King of...
Thou . . . art a king of kings--The committal of power in fullest plenitude belongs to Nebuchadnezzar personally, as having made Babylon the mighty empire it was. In twenty-three years after him the empire was ended: with him its greatness is identified (Dan 4:30), his successors having done nothing notable.