John Chrysostom

"And the saying," we are told, "pleased the whole multitude." This too was worthy of their wisdom. All approved of what was said so sensible was it. "And they chose," it says (again it is the people that choose,) "Stephen, a man full of faith and of the Holy Ghost, and Philip, and Prochorus, and Nicanor, and Timon, and Parmenas, and Nicolas a proselyte of Antioch." And in this regard Philip also was admirable: for it is of him that the writer says: "And we entered into the house of Philip the Evangelist, which was one of the seven; …

Homily on Acts 14 ↗

Clement of Alexandria

Such also are those who say that they follow Nicolaus, quoting an adage of the man, which they pervert, "that the flesh must be abused." But the worthy man showed that it was necessary to check pleasures and lusts, and by such training to waste away the impulses and propensities of the flesh. …

The Stromata Book 2 ↗

Hippolytus of Rome

There are, however, among the Gnostics diversities of opinion; but we have decided that it would not be worth while to enumerate the silly doctrines of these (heretics), inasmuch as they are (too) numerous and devoid of reason, and full of blasphemy. Now, even those (of the heretics) who are of a more serious turn in regard of the Divinity, and have derived their systems of speculation from the Greeks, must stand convicted (of these charges). But Nicolaus has been a cause of the wide-spread combination of these wicked men. …

The Refutation of All Heresies - Book 7 ↗