Amos 1:11-12 RSV

11 Thus says the LORD: "For three transgressions of Edom, and for four, I will not revoke the punishment; because he pursued his brother with the sword, and cast off all pity, and his anger tore perpetually, and he kept his wrath for ever.
12 So I will send a fire upon Teman, and it shall devour the strongholds of Bozrah."