Here is the summing up of what Irenæus had said with the force, brevity, and incisiveness which characterise Tertullian. Further on he rejects any appeal on the part of heretics to scripture:
"If the truth be in our possession, as many as walk by the rule which the Church has handed down from the Apostles, the Apostles from Christ, and Christ from God, the reasonableness of our proposition is manifest, which lays down that heretics are not to be allowed to enter an appeal to scriptures, since without scriptures we prove them to have no concern with scriptures. For if they are heretics, they cannot be Christians, inasmuch as they do not hold from Christ what they follow by their own choice, and in consequence admit the name of heretics.(235) Therefore not being Christians, they have no right to Christian writings. To whom we may well say, Who are you? when did you come? and whence? What are you, who are not mine, doing in my property? By what right dost thou, Marcion, cut down my wood? By what license dost thou, Valentinus, turn the course of my waters? By what power remove my landmarks? This is my possession: how are you sowing it and feeding on it at your pleasure? It is mine, I repeat: I had it of old; I had it first: I have the unquestioned title-deeds from the first proprietors. I am the heir of the Apostles. According to their will, according to their trust, according to the oath I took from them, I hold it. You, assuredly, they have ever disinherited and renounced, as aliens, as enemies. But why are heretics aliens and enemies to Apostles, save from difference of doctrine, which each at his own pleasure has either brought forward or received against Apostles?"(236)
Thus Tertullian adds the witness of the African church to that of the Asiatic and Gallic churches in Irenæus.