Contradiction with Matthew 5:9
Matthew 5:9 emphasizes peacemakers and peace, while Joel 3:11 calls for gathering to battle.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Romans 12:18
Romans 12:18 advises living peacefully with all men, contrary to the war imagery in Joel 3:11.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with James 3:17-18
James 3:17-18 highlights wisdom and peace, contrasting with the conflict in Joel 3:11.
James 3:17-18: But the wisdom that is from above is first pure, then peaceable, gentle, [and] easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. [partiality: or, wrangling]
Contradiction with Isaiah 2:4
Isaiah 2:4 speaks of beating swords into plowshares, opposing the call to arms in Joel 3:11.
Isaiah 2:4: And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more. [pruninghooks: or, scythes]
Paradox #1
Joel 3:11 is a call for the nations to gather for battle against God's people, but it also involves God's judgment on those nations. The moral conflict here could be the contrast between the idea of gathering for war and the concept of divine justice. While war signifies violence and destruction, divine justice implies fairness and moral righteousness. Reconciling the idea of assembling for war with the pursuit of justice and peace can be seen as contradictory.