2 Thessalonians 2:3

Dialogue of Justin

O unreasoning men! understanding not what has been proved by all these passages, that two advents of Christ have been announced: the one, in which He is set forth as suffering, inglorious, dishonoured, and crucified; but the other, in which He shall come from heaven with glory, when the man of apostasy,[420]

Shepherd of Hermas Vision Second

Happy ye who endure the great tribulation that is coming on, and happy they who shall not deny their own life.[13]

Tertullian Against Marcion Book V

Well, but who is the man of sin, the son of perdition," who must first be revealed before the Lord comes; "who opposeth and exalteth himself above all that is called God, or that is worshipped; who is to sit in the temple of God, and boast himself as being God? "[738]

Origen Against Celsus Book II

Paul, moreover, in the second Epistle to the Thessalonians, shows in what manner there will one day be revealed "the man of sin, the son of perdition, who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he sitteth in the temple of God, showing himself that he is God."[115]

Origen Against Celsus Book VI

nor in the writings of Paul,[231]

Dubious Hippolytus Fragments

But as, in accordance with the train of our discussion, we have been constrained to come to the matter of the days of the dominion of the adversary, it is necessary to state in the first place what concerns his nativity and growth; and then we must turn our discourse, as we have said before, to the expounding of this matter, viz., that in all respects the accuser and son of lawlessness[72]

Victorinus Commentary on the Apocalypse of the Blessed John

Paul the apostle says: "Except there come a falling away first, and the man of sin shall appear, the son of perdition; and the adversary who exalted himself above all which is called God, or which is worshipped."[61]

Didache

and then shall appear the world-deceiver[143]