2 Chronicles 20:23

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.

Judges 7:22

And they blew the three hundred trumpets, and Jehovah set every man's sword against his fellow, and against all the host; and the host 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 that 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 in their mount Seir, unto Elparan, which is by the wilderness.

Genesis 36:8-9

And Esau dwelt in mount Seir: Esau is Edom.

Deuteronomy 2:5

contend not 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 unto Esau for a possession.

Joshua 24:4

And I gave unto Isaac Jacob and Esau: and I gave unto Esau mount Seir, to possess it: and Jacob and his children 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 in their mount Seir, unto Elparan, which is by the wilderness.
Genesis 36:8
And Esau dwelt in mount Seir: Esau is Edom.
Deuteronomy 2:5
contend not 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 unto Esau for a possession.
Joshua 24:4
And I gave unto Isaac Jacob and Esau: and I gave unto Esau mount Seir, to possess it: and Jacob and his children went down into Egypt.
Ezekiel 35:2
Son of man, set thy face against mount Seir, and prophesy against it,

American Standard Version Public Domain