This testimony of Irenæus is confirmed by that of Clement of Alexandria. Relating the well-known story of John and the robber, he speaks of the event as having occurred on his return from exile in Patmos “_after the death of the tyrant_,” and represents him as _then an infirm old man_. The testimony in the book itself (chap. i. 9) is clear, that John was on the island of Patmos when these visions were seen. The “_tyrant_” whose death is here referred to must necessarily be either _Nero_ or _Domitian_, as these were, up to the end of the first century, the only imperial persecutors of the Christians. It cannot be supposed to be Nero, since at the time of his persecution (A.D. 64) John could not be supposed to be an “infirm old man;” being probably not much above, if indeed so much as sixty years of age. See Eusebius, _Ecc. Hist._, b. iii. chap. 23. Of this testimony Prof. Stuart, who himself supposes that the Apocalypse was written before the death of Nero, says (i. 264), “The tyrant here meant is probably Domitian; at least, although he is not named by Clement, it is clear that Eusebius so understands the matter.” Victorinus, bishop of Pettaw and martyr in Diocletian’s persecution, in his _Commentary on the Apocalypse_, written towards the close of the third century, says twice expressly that the Apocalypse was seen by the apostle John in the isle of Patmos, when banished thither by the Roman emperor Domitian. See the passages quoted in Elliott, i. 39, and in Prof. Stuart, i. 264. The testimony is unequivocal. To these testimonies from the early fathers may be added that of Jerome, who says that “John saw the Apocalypse on the island of Patmos, to which he was sent by Domitian,” and in another place he says that this occurred in the fourteenth year of the reign of Domitian (Adv. Jovin. lib. i., Lardner, iv. 446, 447). And to these plain testimonies may be added those of Sulpicius Severus and Orosius, contemporaries of Augustine; Gregory Turonensis (cent. vi.), Isidorus Hispalensis (cent. vii.), Marianus Scotus, Primasius, and others. See Prof. Stuart, i. 264, 265, and Elliott, i. 38, 39.