2:1 - But there were false prophets also among the people, even as there shall be false teachers among you, who privately shall bring in damnable heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.

Tertullian The Prescription Against Heretics
neither ought their existence to surprise us, for it was foretold that they should come to pass;[3]
Dubious Hippolytus Fragments
And there shall be false teachers among you, who privily shall bring in damnable heresies."[32]
Lactantius Divine Institutes Book IV
Before all things, it is befitting that we should know both that He Himself and His ambassadors foretold that there must be numerous sects and heresies,[405]

2:4 - For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;

Hippolytus Refutation of All Heresies Book X
fire of judgment, and the rayless scenery of gloomy Tartarus,[67]
Hippolytus Exegetical Fragments
Wherefore, in order to teach us this, he uses the examples of Sheol (Hades), and the love of women, and hell[106]
Lactantius Divine Institutes Book II
of truth. But they fear the righteous,[220]

2:5 - And spared not the old world, but saved Noah the eighth person, a preacher of righteousness, bringing in the flood upon the world of the ungodly;

1 Clement
every age that has passed, and learn that, from generation to generation, the Lord has granted a place of repentance to all such as would be converted unto Him. Noah preached repentance, and as many as listened to him were saved.[44]
Clement of Alexandria Stromata Book I
Before the law, Adam spoke prophetically in respect to the woman, and the naming of the creatures; Noah preached repentance;[284]
Tertullian An Answer to the Jews
Noah also, uncircumcised-yes, and inobservant of the Sabbath-God freed from the deluge.[30]

2:6 - And turning the cities of Sodom and Gomorrha into ashes condemned them with an overthrow, making them an example unto those that after should live ungodly;

1 Clement
On account of his hospitality and godliness, Lot was saved out of Sodore when all the country round was punished by means of fire and brimstone, the Lord thus making it manifest that He does not forsake those that hope in Him, but gives up such as depart from Him to punishment and torture.[49]
Tertullian An Answer to the Jews
of Abraham, proves that it was for the merits of righteousness, without observance of the law, that he was freed from the conflagration of the Sodomites.[36]

2:9 - The Lord knows how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished:

2 Clement
For if we renounce these indulgences and conquer the soul by not fulfilling its wicked desires, we shall be partakers of the mercy of Jesus. Know ye that the day[76]

2:11 - Whereas angels, which are greater in power and might, bring not railing accusation against them before the Lord.

Cyprian Treatise XII Three Books of Testimonies Against the Jews
Of this same thing in the Epistle of Peter: "As strangers and pilgrims, abstain from fleshly lusts, which war against the soul; but having a good conversation among the Gentiles, that while they detract from you as if from evildoers, yet, beholding your good works, they may magnify God."[450]

2:16 - But was rebuked for his iniquity: the dumb ass speaking with man's voice forbad the madness of the prophet.

Cyprian Treatise XI Exhortation to Martyrdom Addressed to Fortunatus
Nor is it difficult for God to open the mouth of a man devoted to Himself, and to inspire constancy and confidence in speech to His confessor; since in the book of Numbers He made even a she-ass to speak against the prophet Balaam.[82]

2:19 - While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.

Irenaeus Against Heresies Book IV
4. For as the serpent beguiled Eve, by promising her what he had not himself,[5]

2:22 - But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.

Hippolytus Refutation of All Heresies Book IX
for a short period, but after a little, wallow once again in the same mire.[12]
Lactantius Divine Institutes Book III
The Cyrenaics say that virtue itself is to be praised on this account, because it is productive of pleasure. True, says the filthy dog, or the swine wallowing in the mire.[23]
Lactantius Divine Institutes Book IV
Therefore He forbade them to use the flesh of the pig for food, that is, not to imitate the life of swine, which are nourished only for death; lest, by devoting themselves to their appetite and pleasures, they should be useless for working righteousness, and should be visited with death. Also that they should not immerse themselves in foul lusts, as the sow, which wallows in the mire;[237]