And these shall be coming away into chastening eonian, yet the just into life eonian. Matthew 26:46 CLNT
Eonian chastening is here limited to the nations who will not succor the faithful of Israel in their time of sore distress. It has no bearing on the sins of individuals. The justice of fire eonian is disciplinary and corrective (cf Jude 7).
From the “Concordent Commentary on the New Testament” by A. E. Knoch