Contradiction with Isaiah 2:4
While Micah 5:6 describes a military action against Assyria, Isaiah 2:4 envisions a time of peace where nations will not take up sword against nation.
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 Matthew 5:39
Micah 5:6 speaks of taking action against an enemy, but Matthew 5:39 teaches to resist not evil and turn the other cheek.
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
Micah 5:6 involves humans enacting vengeance, yet Romans 12:19 advises believers to refrain from taking vengeance, leaving it to God.
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.