Contradiction with Jeremiah 51:30
While Isaiah 31:9 suggests retreat and fear, Jeremiah 51:30 describes Babylon's warriors as having ceased fighting and remaining in strongholds, indicating a different kind of response.
Jeremiah 51:30: The mighty men of Babylon have forborn to fight, they have remained in [their] holds: their might hath failed; they became as women: they have burned her dwellingplaces; her bars are broken.
Contradiction with Jeremiah 50:36
Isaiah 31:9 speaks of fear leading to retreat, but Jeremiah 50:36 highlights how Babylon's warriors become as women due to a sword, emphasizing defeat rather than retreat driven by fear.
Jeremiah 50:36: A sword [is] upon the liars; and they shall dote: a sword [is] upon her mighty men; and they shall be dismayed. [liars: or, chief stays: Heb. bars]
Paradox #1
The potential contradiction in this verse might revolve around the themes of judgment and destruction versus forgiveness and redemption. Some might see a conflict in the idea of a merciful, forgiving deity also delivering severe punishment or destruction. This could raise questions about the balance between justice and mercy.