Because of the violence done to your brother Jacob, shame shall cover you, and you shall be cut off forever.
Obadiah 1:10

He who lives by the sword, shall die by the sword. Edom betrayed Israel time and again for 1000 years even though God commanded Israel to respect their borders all that time. This prophecy was fulfilled in the centuries before Yeshua came, as Judah conquered and eventually scattered or absorbed the remaining people of Edom.