Adam Clarke on Ezekiel 31:11

The mighty one of the heathen - Nebuchadnezzar. It is worthy of notice, that Nebuchadnezzar, in the first year of his reign, rendered himself master of Nineveh, the capital of the Assyrian empire. See Sedar Olam. This happened about twenty years before Ezekiel delivered this prophecy; on this account, Ashshur, Eze 31:3, may relate to the Assyrians, to whom it is possible the prophet here compares the Egyptians. But see the note on Eze 31:3.