1 Corinthians 11:19

Dialogue of Justin

And, `There shall be schisms and heresies.'[89]

Clement of Alexandria Stromata Book VII

Further, it is said that it is on account of "those that are approved that heresies exist."[154]

Tertullian The Prescription Against Heretics

nor the fact that they subvert the faith of some, for their final cause is, by affording a trial to faith, to give it also the opportunity of being "approved."[4]

Tertullian The Prescription Against Heretics

And therefore "heresies must needs be in order that they which are approved might be made manifest,[38]

Tertullian The Prescription Against Heretics

Now, that which he subjoins to evil things, he of course confesses to be itself an evil; and all the greater, indeed, because he tells us that his belief of their schisms and dissensions was grounded on his knowledge that "there must be heresies also."[42]

Tertullian The Prescription Against Heretics

necessary that there should be heresies;[311]

Tertullian The Prescription Against Heretics

that the very Scriptures were even arranged by the will of God in such a manner as to furnish materials for heretics, inasmuch as I read that "there must be heresies,[416]

Tertullian Against the Valentinians

Now if there are no heresies at all but what those who refute them are supposed to have fabricated, then the apostle who predicted them[61]

Tertullian On the Resurrection of the Flesh

Now it is no matter of surprise if arguments are captiously taken from the writings of (the apostle) himself, inasmuch as there "must needs be heresies; "[260]

Tertullian On the Resurrection of the Flesh

Now, since it was "needful that there should be heresies, in order that they which are approved might be made manifest; "[480]

Origen Against Celsus Book III

Now, if these arguments hold good, why should we not defend, in the same way, the existence of heresies in Christianity? And respecting these, Paul appears to me to speak in a very striking manner when he says, "For there must be heresies among you, that they who are approved may be made manifest among you."[42]

Hippolytus Refutation of All Heresies Book IX

, to furnish an account and refutation of those heresies that have sprung up in our own day, by which certain ignorant and presumptuous men have attempted to scatter abroad the Church, and have introduced the greatest confusion[3]

Cyprian Treatise I On the Unity of the Church

The Holy Spirit forewarns and says by the apostle, "It is needful also that there should be heresies, that they which are approved may be made manifest among you."[34]

Cyprian Treatise XII Three Books of Testimonies Against the Jews

In the first epistle of Paul to the Corinthians: "Heresies must needs be, in order that they which are approved may be made manifest among you."[758]

Archelaus Acts of the Disputation with the Heresiarch Manes

But when Archelaus observed this, he raised his voice like a trumpet above the din, in his anxiety to restrain the multitude, and addressed them thus: "Stop, my beloved brethren, lest mayhap we be found to have the guilt of blood on us at the day of judgment; for it is written of men like this, that 'there must be also heresies among you, that they which are approved may be made manifest among you.'"[407]

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]