12:1 - It is not expedient for me doubtless to glory. I will come to visions and revelations of the Lord.

Shepherd of Hermas Vision Third
Hear, then, the parables of the tower; for I will reveal all to you, and give me no more trouble in regard to revelation: for these revelations have an end, for they have been completed. But you will not cease praying for revelations, for you are shameless.[12]
Five Books in Reply to Marcion
When rapt into the heavens,[183]

12:2 - I knew a man in Christ above fourteen years ago, (whether in the body, I cannot tell; or whether out of the body, I cannot tell: God knows;) such an one caught up to the third heaven.

Irenaeus Against Heresies Book II
For that there are spiritual creatures in the heavens, all the Scriptures loudly proclaim; and Paul expressly testifies that there are spiritual things when he declares that he was caught up into the third heaven,[265]
Tertullian A Treatise on the Soul
It, too, has eyes and ears of its own, by means of which Paul must have heard and seen the Lord;[62]
Origen Against Celsus Book I
It does not, however, belong to our present object to explain why Paul says, "Whether in the body, I know not; or whether out of the body, I know not: God knoweth."[88]
Origen Against Celsus Book VI
of God do not speak of "seven" heavens, or of any definite number at all,[114]
Hippolytus Refutation of All Heresies Book V
Paul the apostle, he says, knew of this gate, partially opening it in a mystery, and stating "that he was caught up by an angel, and ascended as far as the second and third heaven into paradise itself; and that he beheld sights and heard unspeakable words which it would not be possible for man to declare."[93]
Methodius From the Discourse on the Resurrection
For the apostle, he says, does not suppose paradise to be in the third heaven, in the opinion of those who knew how to observe the niceties of language, when he says, "I know such a man caught up to the third heaven; and I know such a man, whether in the body or out of the body, God knoweth, that was caught up into paradise."[55]
The Testaments of the Twelve Patriarchs III
3. Hear, then, concerning the seven[4]

12:3 - And I knew such a man, (whether in the body, or out of the body, I cannot tell: God knows;)

Irenaeus Against Heresies Book II
If they do maintain that they are more excellent than he, let them prove themselves so by their works, for they have never pretended to anything like [what he describes as occurring to himself]. And for this reason he added, "Whether in the body, or whether out of the body, God knoweth,"[268]
Irenaeus Against Heresies Book V
because the strength of God is made perfect in weakness,[18]
Origen Commentary on John Book X
Of the carnal one are the words, "Not what I would that do I practise, but what I hate that do I." And he too who was caught up to the third heaven and heard unspeakable words[14]

12:4 - How that he was caught up into paradise, and heard unspeakable words, which it is not lawful for a man to utter.

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]

12:5 - Of such an one will I glory: yet of myself I will not glory, but in mine infirmities.

Tertullian Against Marcion Book I
-thereby teaching us that greatness has its proofs in lowliness, just as (according to the apostle)there is power even in infirmity[170]

12:7 - And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the messenger of Satan to buffet me, lest I should be exalted above measure.

Epistle of Barnabas
But there is a great difference between these two ways. For over one are stationed the light-bringing angels of God, but over the other the angels[242]
Irenaeus Against Heresies Book V
But he said unto me, My grace is sufficient for thee; for strength is made perfect in weakness. Gladly therefore shall I rather glory in infirmities, that the power of Christ may dwell in me."[20]
Tertullian On Modesty
as he writes to his Timotheus. "But withal himself says that `a stake[132]
Tertullian De Fuga in Persecutione
or the design is to humble, as the apostle tells us, that there was given him a stake, the messenger of Satan, to buffet him;[11]
Cyprian Treatise VII On the Mortality
"There was given to me," he says, "a thorn in the flesh, the messenger of Satan to buffet me, that I should not be lifted up: for which thing I besought the Lord thrice, that it might depart from me; and He said unto me, My grace is sufficient for thee, for strength is made perfect in weakness."[31]
Cyprian Treatise XII Three Books of Testimonies Against the Jews
For which thing I thrice besought the Lord, that it should depart from me. And He said unto me, My grace is sufficient for thee; for strength is perfected in weakness."[410]

12:8 - For this thing I besought the Lord three times, that it might depart from me.

Archelaus Acts of the Disputation with the Heresiarch Manes
he says: "For this thing I besought the Lord thrice, that it might depart from me. And He said unto me, My grace is sufficient for thee; for strength is made perfect in weakness."[339]

12:9 - And he said unto me, My grace is sufficient for you: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.

Irenaeus Against Heresies Book III
Long-suffering therefore was God, when man became a defaulter, as foreseeing that victory which should be granted to him through the Word. For, when strength was made perfect in weakness,[375]
Tertullian Against Marcion Book I
All proof of abstinence is lost when excess is impossible; for sundry things have thus their evidence in their contraries. Just as "strength is made perfect in weakness,"[368]
Tertullian Against Marcion Book V
Is he then the same God as He who gave Satan power over the person of Job that his "strength might be made perfect in weakness? "[589]
Tertullian On the Resurrection of the Flesh
In this way also "shall strength be made perfect in weakness,"[333]
Tertullian On Modesty
Lastly, when Paul is praying the Lord for its removal, what does he hear? "Hold my grace sufficient; for virtue is perfected in infirmity."[133]
Tertullian De Fuga in Persecutione
For in other respects, too, injustice in proportion to the enmity it displays against righteousness affords occasion for attestations of that to which it is opposed as an enemy, that so righteousness may be perfected in injustice, as strength is perfected in weakness.[4]

12:12 - Truly the signs of an apostle were wrought among you in all patience, in signs, and wonders, and mighty deeds.

Tertullian To His Wife Book II
the Gentiles to the exercise of some eminent heavenly virtue, is, by the visible proofs of some marked (divine) regard, a terror to her Gentile husband, so as to make him less ready to annoy her, less active in laying snares for her, less diligent in playing the spy over her. He has felt "mighty works;[50]

12:13 - For what is it wherein all of you were inferior to other churches, except it be that I myself was not burdensome to you? forgive me this wrong.

The First Epistle of Clement Concerning Virginity
quarrelsomeness, injustice,[70]

12:21 - And lest, when I come again, my God will humble me among you, and that I shall mourn for many which have sinned already, and have not repented of the uncleanness and fornication and lasciviousness which they have committed.

Tertullian On Modesty
For in saying, toward the end of the Epistle, "Lest, when I shall have come, God humble me, and I bewail many of those who have formerly sinned, and have not repented of the impurity which they have committed, the fornication, and the vileness,"[161]
Cyprian Epistle LI
And yet to these persons themselves repentance is granted, and the hope of lamenting and atoning is left, according to the saying of the same apostle: "I fear lest, when I come to you, I shall bewail many of those who have sinned already, and have not repented of the uncleanness, and fornication, and lasciviousness which they have committed."[54]
Pseudo-Cyprian Exhortation to Repentance
Also in the same: "But I fear lest perchance, when I come to you, God may again humble me among you, and I shall bewail many of those who have sinned before, and have not repented, for that they have committed fornication and lasciviousness."[53]