2 Corinthians 12:4

Irenaeus Against Heresies Book V

Wherefore also the elders who were disciples of the apostles tell us that those who were translated were transferred to that place (for paradise has been prepared for righteous men, such as have the Spirit; in which place also Paul the apostle, when he was caught up, heard words which are unspeakable as regards us in our present condition[24]

Tertullian The Prescription Against Heretics

of martyrdom. Now, although Paul was carried away even to the third heaven, and was caught up to paradise,[261]

Tertullian On Repentance

to his own paradise,[116]

Origen de Principiis Book II

We must therefore know that the Paraclete is the Holy Spirit, who teaches truths which cannot be uttered in words, and which are, so to speak, unutterable, and "which it is not lawful for a man to utter,"[111]

Origen Against Celsus Book VI

Nay, Paul even heard "unspeakable words, which it is not lawful for a man to utter."[36]

Origen Against Celsus Book VII

Such are the things which Paul labours to express when he says, "I heard unspeakable words, which it is not lawful for a man to utter,"[98]

Hippolytus Refutation of All Heresies Book VII

and, "I have heard inexpressible words which it is not possible for man to declare."[51]

Revelation of Paul

Revelation of the holy Apostle Paul: the things which were revealed to him when he went up even to the third heaven, and was caught up into paradise, and heard unspeakable words.[1]

Origen Commentary on John Book VI

Suppose one of the Apostles to have understood the "unspeakable words which it is not lawful for a man to utter,"[16]