Commentaries:
Jamieson, Fausset, and Brown
Here the literal supersedes the figurative. 
 shall surely deal with him—according to his own pleasure, and according to the Assyrian's (Sardanapalus) desert. Nebuchadnezzar is called "the mighty one" (El, a name of God), because he was God's representative and instrument of judgment (Daniel 2:37-38).
Other Jamieson, Fausset, and Brown entries containing Ezekiel 31:11:
Ezekiel 17:3
 
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