Contradiction with Matthew 5:44
While Ezekiel 30:8 speaks of destruction upon Egypt by the sword, Matthew 5:44 emphasizes loving enemies and doing good to those who hate you.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Isaiah 2:4
Ezekiel 30:8 mentions warfare as a tool of divine judgment, whereas Isaiah 2:4 speaks of turning swords into plowshares and nations not learning war anymore.
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]
Contradiction with Romans 12:17
Ezekiel 30:8 speaks about retribution against a nation, while Romans 12:17 advises against repaying evil for evil, promoting peace instead.
Romans 12:17: Recompense to no man evil for evil. Provide things honest in the sight of all men.
Contradiction with Matthew 26:52
In Ezekiel 30:8, the sword is a tool for divine judgment, but Matthew 26:52 warns that those who take up the sword will perish by the sword, advocating against violence.
Matthew 26:52: Thinkest thou that I cannot now pray to my Father, and he shall presently give me more than twelve legions of angels?