Matthew 16:17

Irenaeus Against Heresies Book III

if these men did not know the truth? How also did the seventy preach, unless they had themselves previously known the truth of what was preached? Or how could Peter have been in ignorance, to whom the Lord gave testimony, that flesh and blood had not revealed to him, but the Father, who is in heaven?[227]

Irenaeus Against Heresies Book III

when He was generated from the same seed, and was a descendant of these men? And how was it that He also pronounced Peter blessed, because he acknowledged Him to be the Son of the living God?[422]

Clement of Alexandria Stromata Book VI

A few, too, knew Him as the Son of God; as Peter, whom also He pronounced blessed, "for flesh and blood revealed not the truth to him, but His Father in heaven,"[253]

Tertullian Against Marcion Book IV

The case of Peter escaped his memory, who, although he was a man of the law, was not only chosen by the Lord, but also obtained the testimony of possessing knowledge which was given to him by the Father.[333]

Tertullian Against Praxeas

And in the same manner He pronounced Peter to be "blessed," inasmuch as "flesh and blood had not revealed it to him"-that he had perceived the Father-"but the Father which is in heaven."[251]

Tertullian Against Praxeas

When acknowledged by Peter as the "Christ (the Son) of God,"[372]

A Treatise of Novatian Concerning the Trinity

Or when by the Lord Himself the sacrament of this revelation is approved, and He says: "Blessed art thou, Simon Barjona, because flesh and blood hath not revealed this to thee, but my Father which is in heaven?[207]

Dionysius Extant Fragments Part I

And on the ground of such a revelation as that the Lord pronounced Peter blessed, when He said: "Blessed art thou, Simon Bar-jona; for flesh and blood hath not revealed it unto thee, but my Father which is in heaven."[18]

Origen Commentary on Matthew Book XII

But also the Jews, as worthy of the veil which was upon their heart, held false opinions concerning Jesus; while Peter as not a disciple "of flesh and blood,"[58]