1:1 - Paul, a servant of God, and an apostle of Jesus Christ, according to the faith of God's elect, and the acknowledging of the truth which is after godliness;

Tertullian De Corona
By means of these organs, indeed, we are to enjoy flowers; but if he declares that those who make idols will be like them, they already are so who use anything after the style of idol adornings. "To the pure all things are pure: so, likewise, all things to the impure are impure; "[32]

1:2 - In hope of eternal life, which God, that cannot lie, promised before the world began;

1 Clement
He who has commanded us not to lie, shall much more Himself not lie; for nothing is impossible with God, except to lie.[130]

1:5 - For this cause left I you in Crete, that you should set in order the things that are lacking, and ordain elders in every city, as I had appointed you:

Tertullian On Exhortation to Chastity
Thence, therefore, among us the prescript is more fully and more carefully laid down, that they who are chosen into the sacerdotal order must be men of one marriage;[35]

1:6 - If any be blameless, the husband of one wife, having faithful children not accused of riot or unruly.

Clement of Alexandria Stromata Book III
Quid autem ad haec dicunt, qui in legem invehuntur, et in matrimonium, quasi sit solum a lege concessum, non autem etiam in Novo Testamento? Quid ad has leges latas possunt dicere, qui sationem abhorrent et generationem? cure "episcopum" quoque, "qui domui recte praesit,"[229]
Tertullian To His Wife Book I
How detrimental to faith, how obstructive to holiness, second marriages are, the discipline of the Church and the prescription of the apostle declare, when he suffers not men twice married to preside (over a Church[81]
Tertullian On Monogamy
Come, now, you who think that an exceptional law of monogamy is made with reference to bishops, abandon withal your remaining disciplinary titles, which, together with monogamy, are ascribed to bishops.[92]
Constitutions of the Holy Apostles Book VI
We have already said, that a bishop, a presbyter, and a deacon, when they are constituted, must be but once married, whether their wives be alive or whether they be dead; and that it is not lawful for them, if they are unmarried when they are ordained, to be married afterwards; or if they be then married, to marry a second time, but to be content with that wife. which they had when they came to ordination.[86]

1:7 - For a bishop must be blameless, as the steward of God; not self-willed, not soon angry, not given to wine, not an attacker, not given to filthy illegal gain;

Cyprian Epistle LXVII
But neither can deceit advantage Martialis, in such a way as that he who also is involved in great crimes should hold his bishopric, since the apostle also warns, and says, "A bishop must be blameless, as the steward of God."[23]
The First Epistle of Clement Concerning Virginity
not misleaders; not "lovers of money; not malevolent."[140]

1:9 - Holding fast the faithful word as he has been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers.

Origen Against Celsus Book III
It is manifest, further, that amongst the characteristic qualifications of those who are termed "bishops," Paul, in describing what kind of man the bishop ought to be, lays down as a qualification that he should also be a teacher, saying that he ought to be able to convince the gainsayers, that by the wisdom which is in him he may stop the mouths of foolish talkers and deceivers.[157]

1:10 - For there are many unruly and vain talkers and deceivers, specially they of the circumcision:

Epistle of Ignatius to the Trallians
For there are some vain talkers[33]
Clement of Alexandria Stromata Book I
"For there are," he says, "many unruly and vain talkers and deceivers: "[94]

1:12 - One of themselves, even a prophet of their own, said, The Cretians are always liars, evil beasts, sluggards.

Address of Tatian to the Greeks
though some one says that the Cretans are liars.[75]
Athenagoras A Plea for the Christians
Have built a tomb to thee who art not dead."[120]
Tertullian Ad Nationes Book II
Your Jupiter too, stolen in his infancy, was unworthy of both the home and the nutriment accorded to human beings; and, as he deserved for so bad a child, he had to live in Crete.[245]
Tertullian A Treatise on the Soul
Comic poets deride the Phrygians for their cowardice; Sallust reproaches the Moors for their levity, and the Dalmatians for their cruelty; even the apostle brands the Cretans as "liars."[161]
Origen Against Celsus Book III
But since he appears to admit that the tomb of Jupiter is in Crete, when he says that "we are ignorant of the grounds on which the Cretans observe such a custom," we reply that Callimachus the Cyrenian, who had read innumerable poetic compositions, and nearly the whole of Greek history, was not acquainted with any allegorical meaning which was contained in the stories about Jupiter and his tomb; and accordingly he accuses the Cretans in his hymn addressed to Jupiter, in the words:[135]

1:15 - Unto the pure all things are pure: but unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.

Clement of Alexandria Stromata Book III
"Omnia" ergo dicit esse "munda mundis; pollutis autem et infidelibus nihil est mundum, sed polluta est eorum et mens, et conscientia."[231]
Five Books in Reply to Marcion
Reprobate in your very mind,[60]
Cyprian Epistle LVIII
we do not think that this ought to be alleged as any impediment to heavenly grace. For it is written, "To the pure all things are pure."[7]
Novation On the Jewish Meats
For the illustrious Master, and the heavenly Teacher, and the ordainer of the perfected truth, has come, under whom at length it is rightly said: "To the pure all things are pure but unto them that are defiled and unbelieving is nothing pure, but even their mind and conscience is defiled."[21]
Origen Commentary on Matthew Book XI
But as for the things which are called impure, "All things become pure to the pure," for, "To them that are defiled and unbelieving nothing is pure, since both their minds and their conscience are defiled."[101]

1:16 - They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.

Clement of Alexandria Stromata Book IV
" For who of those who are wise would not choose to reign in God, and even to serve? So some "confess that they know God," according to the apostle; "but in works they deny Him, being abominable and disobedient, and to every good work reprobate."[109]