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].

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.

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.

Genesis 14:6

and the Horites on their mount Seir, to Elparan, which is by the wilderness.

Genesis 36:8-9

And Esau dwelt in mount Seir. Esau is Edom.

Deuteronomy 2:5

Do not contend with them, for I will not give you of their land, no, not so much as for the sole of the foot to tread on, because I have given mount Seir to Esau for a possession.

Joshua 24:4

And I gave to Isaac, Jacob and Esau. And I gave to Esau mount Seir to possess it. And Jacob and his sons went down into Egypt.

Ezekiel 35:2-3

Son of man, set thy face against mount Seir, and prophesy against it.

Treasury of Scripture Knowledge

Summary

For the children of Ammon and Moab stood up against the inhabitants of mount Seir, utterly to slay and destroy them: and when they had made an end of the inhabitants of Seir, every one helped to destroy another.

Bible References

Mount seir

Genesis 14:6
and the Horites on their mount Seir, to Elparan, which is by the wilderness.
Genesis 36:8
And Esau dwelt in mount Seir. Esau is Edom.
Deuteronomy 2:5
Do not contend with them, for I will not give you of their land, no, not so much as for the sole of the foot to tread on, because I have given mount Seir to Esau for a possession.
Joshua 24:4
And I gave to Isaac, Jacob and Esau. And I gave to Esau mount Seir to possess it. And Jacob and his sons went down into Egypt.
Ezekiel 35:2
Son of man, set thy face against mount Seir, and prophesy against it.