1 Samuel 14:20
Then Saul and all the people who were with him assembled and went into battle. Now the swords of all the Philistines were against each other, and there was very great confusion.
Judges 7:22
As the 300 trumpets were being sounded, the LORD turned the swords of the Midianite soldiers against one another throughout the entire army, and the army ran away as far as Beth-shittah in the direction of Zererah. They got as far as the outskirts of Abel-meholah, near Tabbath.
2 Chronicles 20:23
The Ammonites and Moabites attacked the inhabitants of Mount Seir, destroying them, and after they had finished with the inhabitants of Mount Seir, they worked on destroying one another!
1 Samuel 14:16
Saul's sentries in Gibeah of Benjamin watched as the camp was in disarray, going this way and that.
Isaiah 9:19-21
From the wrath of the LORD of the Heavenly Armies the land has been scorched, and the people have become like fuel for the fire; no one will spare his neighbor.
Isaiah 19:2
I will stir up Egyptians against Egyptians, and everyone will fight against his brother, everyone against his neighbor, city against city, kingdom against kingdom.