For my sword shall be bathed in heaven: behold, it shall come down upon Edom, and upon the people of my curse, to judgment.
All Commentaries on Isaiah 34:5 Go To Isaiah 34
Jerome
AD 420
Because God did not spare the sinful angels who lost their heavenly home through their own fault, therefore does he say through Isaiah, “My sword in heaven is satiated.” For every sinner among the people will die by the sword, yet not by a physical sword (there are many and varied ways to die other than by a sword) but by the spiritual sword with which all who fail to do penance must be stricken.