Contradiction with Matthew 5:44
While 2 Chronicles 26:6 describes a military conquest, Matthew 5:44 teaches to love your enemies and pray for those who persecute 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 Exodus 20:13
2 Chronicles 26:6 involves acts of war, whereas Exodus 20:13 commands "Thou shalt not kill."
Exodus 20:13: Thou shalt not kill.
Contradiction with Isaiah 2:4
2 Chronicles 26:6 recounts Uzziah's warfare, but Isaiah 2:4 envisions a future where nations will not engage in 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 12:19
2 Chronicles 26:6 describes Uzziah taking revenge against enemies, while Romans 12:19 instructs to leave vengeance 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.
Contradiction with Matthew 26:52
2 Chronicles 26:6 tells of Uzziah's military successes, but Matthew 26:52 warns that those who take the sword will perish by the sword.
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?
Contradiction with James 4:1
2 Chronicles 26:6 shows conflict and victory in warfare; however, James 4:1 questions the source of fights and disputes, suggesting they arise from desires and conflicts within.
James 4:1: From whence [come] wars and fightings among you? [come they] not hence, [even] of your lusts that war in your members? [fightings: or, brawlings] [lusts: or, pleasures]
Contradiction with Proverbs 16:7
While 2 Chronicles 26:6 speaks of defeating enemies through war, Proverbs 16:7 suggests that when a man’s ways please the Lord, He makes even his enemies to be at peace with him.
Proverbs 16:7: When a man's ways please the LORD, he maketh even his enemies to be at peace with him.