Matthew 5:16

Irenaeus Against Heresies Book II

That God is the Creator of the world is accepted even by those very persons who in many ways speak against Him, and yet acknowledge Him, styling Him the Creator, and an angel, not to mention that all the Scriptures call out [to the same effect], and the Lord teaches us of this Father[41]

Irenaeus Against Heresies Book IV

For this reason the Lord also said, "Let your light so shine before men, that they may see your good deeds, and glorify your Father who is in heaven."[599]

Clement of Alexandria Stromata Book III

Quid vero? an nescitis, viri egregii (loquor enim tanquam praesentibus), quod cure praeceptis, quae se recte habent, pugnantes, propriae saluti resistis? Non enim ea, quae sunt utiliter edicta, sed vos ipsos evertitis. Et Dominus: "Luceant" quidera, inquit, "bona vestra opera: "[32]

Clement of Alexandria Stromata Book IV "Let thy works shine,"[259]

Tertullian On Idolatry

But "let your works shine," saith He;[114]

Tertullian On the Apparel of Women Book II

For what purpose, except that malice may have no access at all to you, or that you may be an example and testimony to the evil? Else, what is (that): "Let your works shine? "[131]

Origen Against Celsus Book V

and, "Let your light so shine before men, that they, seeing your good works, may glorify your Father who is in heaven,"[34]

Cyprian Epistle VI

so on the other hand those are dear to God through whose conformity to discipline the name of God is declared with a testimony of praise, as it is written, the Lord Himself forewarning and saying, "Let your light so shine before men that they may see your good works and glorify your Father which is in heaven."[6]

Cyprian Treatise XII Three Books of Testimonies Against the Jews

Also in the same place: "Let your light shine before men, that they may see your good works, and glorify your Father which is in heaven."[550]

Epistle of Theonas to Lucianus

Yea, like gold reduced in the furnace, it has only been made to shine the more under the storms of persecution, and its truth and grandeur have only become always the more and more illustrious, so that now, peace being granted to the churches by our gracious prince, the works of Christians are shining even in sight of the unbelieving, and God your Father, who is in heaven, is glorified thereby;[3]

Epistle of Theonas to Lucianus

For in old times some former princes thought us malevolent and filled with all manner of crime; but now, seeing your good works, they should not be able to avoid glorifying Christ Himself.[5]

Methodius Discourse VI. Agathe

Now the oil represents wisdom and righteousness; for while the soul rains down unsparingly, and pours forth these things upon the body, the light of virtue is kindled unquenchably, making its good actions to shine before men, so that our Father which is in heaven may be glorified.[8]

The First Epistle of Clement Concerning Virginity

that they may arise and go forth from the darkness by the light of the good works of the fear of God, "that they may see our good works and glorify our Father who is in heaven."[12]

Origen Commentary on John Book II

To them the light of the saints will shine. Here, perhaps, we have the key to the meaning of that verse:[50]

Origen Commentary on Matthew Book X

For whom will they shine? For those below them who will enjoy their light, after the analogy of the sun which now shines for those upon the earth? For, of course, they will not shine for themselves. But perhaps the saying," Let your light shine before men,"[16]