Contradiction with Matthew 5:39
Instructs to turn the other cheek instead of defending oneself, contrasting the armed defense in Nehemiah 4:18.
Matthew 5:39: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.
Contradiction with Romans 12:19
Advises against taking vengeance and instead give place to God's wrath, contrasting the self-defense preparation in Nehemiah 4:18.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Contradiction with Isaiah 2:4
Describes a future where weapons are turned into farming tools, opposing the readiness for battle shown in Nehemiah 4:18.
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]