For the day of the LORD is near upon all the nations: as you have done, it shall be done unto you: your reward shall return upon your own head.
All Commentaries on Obadiah 1:15 Go To Obadiah 1
Jerome
AD 420
Near, O heretic, is the Day of the Lord over all the nations. Near is the time of judgment in which all the nations are to be judged. As you have acted against the church, the same pain will come back upon your head, and your iniquities will descend upon the crown of your head. For as you have rejoiced in their death and as you have celebrated with a feast on my holy mountain, which is the church, you will not drink my cup, but the cup of the devil, about whom Habakkuk said, “Woe to him who gives drink to his neighbor, turning him upside down into confusion.” … Because you have worshiped in a way that causes ruin to my servants, therefore persecution will come against you and you will suffer for what you have done. And as you rejoiced against my people when you left them to the nations, likewise all the nations will rejoice against you, and they will eat and drink and continue the same persecution on you which you originally rejoiced in for my people. .
