Obad 1:18

18 no survivor. Those survivors (v. 14) of Judah will rise up like a blazing fire of divine wrath to consume Edom, leaving her not a single survivor. Although powerful in Obadiah’s day, from God’s perspective Edom is as good as dead.

the Lord has spoken. Like a signature, this clause emphasizes the finality of God’s intentions. He has committed Himself.