found something more:
The Epistle to Diognetus.--This letter was long ascribed to Justin Martyr, but it is now generally regarded as anonymous. It was written not far from A.D. 100, perhaps by Marcion, possibly by Justin Martyr. It is a beautiful composition, full of the most apostolic spirit. It has very little belonging to our theme, except that at the close of Chapter X it speaks of "those who shall be condemned to the aionion fire which shall chastise those who are committed to it even unto an end," 11 (mechri telous). Even if aionion usually meant endless, it is limited here by the word "unto" which has the force of until, as does aidios in Jude 6,--"aidios chains under darkness, unto (or until) the judgment of the great day." Such a limited chastisement, it would seem, could only be believed in by one who regarded God as Diognetus's correspondent did, as one who "still is, was always, and ever will be kind and good, and free from wrath."