Thomas Aquinas

Second, he describes the killing as to those of middle rank, setting out the diversity of those killed: the sword of the Lord is filled with blood, it is made thick with the blood of lambs and buck goats, with the blood of rams, through all of which are to be understood the various ranks of those killed: this is the sword of a great slaughter (Ezek 21:14); and the magnitude of the killing: there is a victim of the Lord in Bosra and a great slaughter in the land of Edom, that is, many animals are killed, as in a banquet of a great …

Commentary on Isaiah ↗