Contradiction with Matthew 5:44
2 Chronicles 17:18 mentions strengthening military forces, whereas Matthew 5:44 emphasizes loving enemies and praying for them instead of preparing for conflict.
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
While 2 Chronicles 17:18 focuses on building military strength, Isaiah 2:4 envisions a future where nations will not train for 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 Micah 4:3
This verse, like Isaiah 2:4, contrasts with the martial preparations described in 2 Chronicles 17:18 by predicting a time of peace and the end of war preparation.
Micah 4:3: And he shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more. [pruninghooks: or, scythes]
Contradiction with Romans 12:18
2 Chronicles 17:18 emphasizes readiness for war, whereas Romans 12:18 encourages living peaceably with all men, which inherently contradicts militarization.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with Hebrews 12:14
The martial focus of 2 Chronicles 17:18 is contradicted by this verse's call to pursue peace with all people.
Hebrews 12:14: Follow peace with all [men], and holiness, without which no man shall see the Lord: