1 Samuel 14:20
And Saul and all the people who were with him were gathered together, and came to the battle. And, behold, every man's sword was against his fellow, [and there was] a very great discomfiture.
Judges 7:22
And they blew the three hundred trumpets, and LORD set every man's sword against his fellow, and against all the army. And the army fled as far as Beth-shittah toward Zererah, as far as the border of Abel-meholah, by Tabbath.
2 Chronicles 20:23
For the sons of Ammon and Moab stood up against the inhabitants of mount Seir, to slay and destroy them utterly. And when they had made an end of the inhabitants of Seir, every one helped to destroy another [of themselves].
1 Samuel 14:16
And the watchmen of Saul in Gibeah of Benjamin looked, and, behold, the multitude melted away, and they went [here] and there.
Isaiah 9:19-21
Through the wrath of LORD of hosts is the land burnt up, and the people are as the fuel of fire; no man spares his brother.
Isaiah 19:2
And I will stir up the Egyptians against the Egyptians, and they shall fight each one against his brother, and each one against his neighbor, city against city, kingdom against kingdom.