Isaiah 34:6-8

The sword of the LORD is drenched with blood and covered with fat— with the blood of lambs and goats, with the fat of rams prepared for sacrifice. Yes, the LORD will offer a sacrifice in the city of Bozrah. He will make a mighty slaughter in Edom. Even men as strong as wild oxen will die— the young men alongside the veterans. The land will be soaked with blood and the soil enriched with fat. For it is the day of the LORD’s revenge, the year when Edom will be paid back for all it did to Israel.