Contradiction with Matthew 5:44
This verse suggests loving your enemies and not fighting them, while 2 Chronicles 11:2 involves God discouraging war among brothers.
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 15:3
This verse calls the Lord a man of war, which contrasts with God's message to avoid conflict in 2 Chronicles 11:2.
Exodus 15:3: The LORD [is] a man of war: the LORD [is] his name.
Contradiction with Luke 12:51
This suggests Jesus came to bring division, unlike the unity God seeks in 2 Chronicles 11:2 by preventing conflict among Israelites.
Luke 12:51: Suppose ye that I am come to give peace on earth? I tell you, Nay; but rather division:
Contradiction with Ecclesiastes 3:8
This verse speaks of a time for war, in contrast to God's directive in 2 Chronicles 11:2 against fighting.
Ecclesiastes 3:8: A time to love, and a time to hate; a time of war, and a time of peace.