2 Chronicles 20:23

Then rose up the sons of Ammon and Moab against the inhabitants of Mount Seir, to devote and to destroy, - and when they had made an end of the inhabitants of Seir, they helped to cut off, every man his neighbour.

Judges 7:22

When the three hundred blew the horns, Yahweh set the sword of every man, against his neighbour, and against all the host, - and the host fled, as far as the Place of Acacias, towards Zererath, as far as the border of Abel-meholah, by Tabbath.

1 Samuel 14:20

And Saul and all the people that were with him gathered themselves together, and came as far as the host, - and lo! the sword of every man was against his fellow, an exceeding great confusion.

Genesis 14:6

and the Horites in their Mount Seir, - as far as El-paran, which is by the desert.

Genesis 36:8-9

So Esau dwelt in Mount Seir, Esau, is Edom.

Deuteronomy 2:5

do not engage in strife with them, for I will not give you of their land, so much as place for the tread of a foot-sole, - for as a possession to Esau, have I given Mount Seir.

Joshua 24:4

and gave unto Isaac Jacob and Esau, - and gave unto Esau, Mount Seir, to possess it, but, 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 in their Mount Seir, - as far as El-paran, which is by the desert.
Genesis 36:8
So Esau dwelt in Mount Seir, Esau, is Edom.
Deuteronomy 2:5
do not engage in strife with them, for I will not give you of their land, so much as place for the tread of a foot-sole, - for as a possession to Esau, have I given Mount Seir.
Joshua 24:4
and gave unto Isaac Jacob and Esau, - and gave unto Esau, Mount Seir, to possess it, but, Jacob and his sons, went down into Egypt.
Ezekiel 35:2
Son of man Set thy face against Mount Seir, - and prophesy against it;