Isaiah 34:6Meaning & Commentary from the Church Fathers

The sword of the Lord is drenched in blood, weighed down by fat, including the blood of lambs and goats, and the fat from the kidneys of rams. Observe how clearly this is expressed: through the imagery of goats and sheep, it is revealed that their demise is akin to that of mute animals; just as these creatures are rarely mentioned following their slaughter, so too are those individuals who have embraced their ways and have sunk even lower in depravity. Though naturally voiceless, these men have chosen to become like the beasts. The offering is with the Lord at Vosor, and the great sacrifice is occurring in the land of Edom. Why does the prophet refer to it as a sacrifice? It is because the wrath of God reached a point where it could no longer overlook their transgressions.

As an offering to the Lord in Vosor and a significant slaughter in Idumea, the powerful will fall alongside the weak, the young, and the land will consume their blood, becoming filled with their flesh. Vosor signifies constraint, enclosure, gospel, and also refers to flesh. Thus, Idumea can be interpreted as Vosor, representing either flesh or siege, meaning it is besieged, or as the gospel, since it was within this region (Judea) that Christ proclaimed the good news. Additionally, it can be viewed as a bastion, as the Lord surrounds it and His people, as noted in Psalms 124:2.

It is an offering to the Lord in Vosora upon His return; an offering through which the Edomites will face destruction by the sword in accordance with the decree of justice.