firstborn of the poor. the poorest of the poor. Hebrew idiom. Hebrew. dal, impoverished, reduced. See Isaiah 11:4. This looks forward to the fulfilment by Messiah (Isaiah 14:32).
Related Commentaries of Isaiah 14:30
Isaiah 14:30
30 And the firstborn of the poor shall feed, and the needy shall lie down in safety: and I will kill thy root with famine, and he shall slay thy remnant.