1. Now all these [heretics] are of much later date than the bishops to whom the apostles committed the churches; which fact I have in the third book taken all pains to demonstrate. It follows, then, as a matter of course, that these heretics aforementioned, since they are blind to the truth, and deviate from the [right] way, will walk in various roads; and therefore the footsteps of their doctrine are scattered here and there without agreement or connection. But the path of those belonging to the church circumscribes the whole world, as possessing the sure tradition from the apostles, and gives unto us to see that the faith of all is one and the same, since all receive one and the same God the Father, and believe in the same dispensation regarding the incarnation of the Son of God, and are cognizant of the same gift of the Spirit, and are conversant with the same commandments, and preserve the same form of ecclesiastical constitution, and expect the same advent of the Lord, and await the same salvation of the complete man, that is, of the soul and body. And undoubtedly the preaching of the church is true and stedfast, in which one and the same way of salvation is shown throughout the whole world. For to her is entrusted the light of God; and therefore the "wisdom" of God, by means of which she saves all men, "is declared in [its] going forth; it uttereth [its voice] faithfully in the streets, is preached on the tops of the walls, and speaks continually in the gates of the city." For the church preaches the truth everywhere, and she is the seven-branched candlestick which bears the light of Christ.