Charles Ellicott Commentary Isaiah 14:24

"Jehovah of hosts hath sworn, saying, Surely, as I have thought, so shall it come to pass; and as I have purposed, so shall it stand:" — Isaiah 14:24 (ASV)

The Lord of hosts has sworn ... —The long “oracle” of Babylon is followed by a fragmentary prophecy against Assyria (Isaiah 14:24–27). This prophecy was possibly misplaced. Alternatively, opening as it does with a solemn assertion like that of the preceding verse, it may have been added as proof that the word of the Lord of Hosts would be fulfilled on Babylon, as it had been on Assyria, with which, indeed, Babylon was closely connected—almost, perhaps, identified—in his thoughts.