Now we call that perfect which wants nothing. For what is yet wanting to him who knows God? For it were truly monstrous that that which is not complete should be called a gift (or act) of God’s grace. Being perfect, He consequently bestows perfect gifts. As at His command all things were made, so on His bare wishing to bestow grace, ensues the perfecting of His grace. For the future of time is anticipated by the power of His volition.Clement
Instructor Bk. 1 Ch. VI, Vol. 2

Who then is able to govern the beasts, or the fishes, or the fowls of heaven? For we ought to perceive that to govern implies authority, so that one should command and rule. If, therefore, this does not exist at present, yet still He has promised it to us. When? When we ourselves also have been made perfect [so as] to become heirs of the covenant of the Lord.Barnabas
Epistle Pt. 1 Ch. VI, Vol. 1

For the Scripture saith, “Woe to them who are wise to themselves, and prudent in their own sight!” (Isa_5:21) Let us be spiritually-minded: let us be a perfect temple to God. As much as in us lies, let us meditate upon the fear of God, and let us keep His commandments, that we may rejoice in His ordinances.Barnabas
Epistle Pt. 1 Ch. IV, Vol. 1

But as he is a believer, he is not yet also righteous - I mean according to the righteousness of progress and perfection, according to which the spiritual man is called righteous. For instance, on Abraham becoming a believer, it was reckoned to him for righteousness, he is having advanced to the greater and more perfect degree of faith. For he who merely abstains from evil conduct is not just, unless he also attain besides beneficence and knowledge; and for this reason, some things are to be abstained from, others are to be done. “By the armor of righteousness on the right hand and on the left,” (2Co_6:7) the apostle says, the righteous man is sent on to the inheritance above, - by some [arms] defended, by others putting forth his might. For the defense of his panoply alone, and abstinence from sins, are not sufficient for perfection, unless he assume in addition the work of righteousness - activity in doing good.Clement
Stromata Bk. 6 Ch. XII, Vol. 2

For our God is a lover of mankind, and “will have all men to be saved, and to come to the knowledge of the truth.” (1Ti_2:4) Wherefore “He makes His sun to rise upon the evil and on the good, and sendeth rain on the just and on the unjust;” (Mat_5:45) of whose kindness the Lord, wishing us also to be imitators, says, “Be ye perfect, even as also your Father that is in heaven is perfect.” (Mat_5:48)Ignatius (Disciple of Apostle John)
Epistle to the Philadelphians Ch. III, Vol. 1

How, then, has he any more need of fortitude, who is not in the midst of dangers, being not present, but already wholly with the object of love? And what necessity for self-restraint to him who has not need of it? For to have such desires, as require self-restraint in order to their control, is characteristic of one who is not yet pure, but subject to passion.Clement
Stromata Bk. 6 Ch. IX, Vol. 2

Let him who has love in Christ keep the commandments of Christ… By love have all the elect of God been made perfect; without love nothing is well-pleasing to God.St. Clement (Disciple of Apostle Peter)
Corinthians Ch. XLIX, Vol. 1

For sanctity, as I conceive it, is perfect pureness of mind, and deeds, and thoughts, and words too, and in its last degree sinlessness in dreams.Clement
Stromata Bk. 4 Ch. XXII, Vol. 2

In this perfection it is possible for man and woman equally to share. It is not only Moses, then, that heard from God, “I have spoken to thee once, and twice, saying, I have seen this people, and lo, it is stiff-necked. Suffer me to exterminate them, and blot out their name from under heaven; and I will make thee into a great and wonderful nation much greater than this;” who answers not regarding himself, but the common salvation: “By no means, O Lord; forgive this people their sin, or blot me out of the book of the living.” (Exo_32:9, Exo_32:10, Exo_32:32) How great was his perfection, in wishing to die together with the people, rather than be saved alone! But Judith too, who became perfect among women, in the siege of the city, at the entreaty of the elders went forth into the strangers’ camp, despising all danger for her country’s sake, giving herself into the enemy’s hand in faith in God; and straightway she obtained the reward of her faith, - though a woman, prevailing over the enemy of her faith, and gaining possession of the head of Holofernes. And again, Esther perfect by faith, who rescued Israel from the power of the king and the satrap’s cruelty: a woman alone, afflicted with fasting, held back ten thousand armed hands, annulling by her faith the tyrant’s decree; him indeed she appeased, Haman she restrained, and Israel she preserved scathless by her perfect prayer to God. I pass over in silence Susanna and the sister of Moses, since the latter was the prophet’s associate in commanding the host, being superior to all the women among the Hebrews who were in repute for their wisdom; and the former in her surpassing modesty, going even to death condemned by licentious admirers, remained the unwavering martyr of chastity.Clement
Stromata Book 4 Ch. XIX, Vol.2