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You, O King, are a king of kings - The phrase “king of kings” is a Hebraism, denoting a supreme monarch, or one who has other kings…

Interpretation of the vision. Nebuchadnezzar is the head; or, in other words, he is the first of the four kingdoms which are denoted by the image. …

Daniel here declares "the golden head of the image" to be the Babylonian kingdom. We know that the Assyrians were subdued before the monarchy was t…

You, O king, are a king of kings
Having many kings subject and tributary to him, or would have; as the kings of Juda…

This image represented the kingdoms of the earth that would successively rule the nations and influence the affairs of the Jewish church.
Albert Barnes
AlbertBarnes