Esias 34:6

6 The sword of the Lord is filled with blood, it is glutted with fat, with the blood of goats and lambs, and with the fat of goats and rams: for the Lord has a sacrifice in Bosor, and a great slaughter in Idumea.

Esias 34:6 In-Context

4 And all the powers of the heavens shall melt, and the sky shall be rolled up like a scroll: and all the stars shall fall like leaves from a vine, and as leaves fall from a fig-tree.
5 My sword has been made drunk in heaven: behold, it shall come down upon Idumea, and with judgment upon the people doomed to destruction.
6 The sword of the Lord is filled with blood, it is glutted with fat, with the blood of goats and lambs, and with the fat of goats and rams: for the Lord has a sacrifice in Bosor, and a great slaughter in Idumea.
7 And the mighty ones shall fall with them, and the rams and the bulls; and the land shall be soaked with blood, and shall be filled with their fat.
8 For it is the day of judgment of the Lord, and the year of the recompence of Sion in judgment.

The Brenton translation of the Septuagint is in the public domain.