10 But it happens, by a love of presumption and of obstinacy, that one would rather maintain his own evil and false position, than agree in the right and true which belongs to another. Looking forward to which, the blessed Apostle Paul writes to Timothy, and warns him that a bishop must not be “litigious, nor contentious, but gentle and teachable.” Now he is teachable who is meek and gentle to the patience of learning. For it behooves a bishop not only to teach, but also to learn; because he also teaches better who daily increases and advances by learning better; which very thing, moreover, the same Apostle Paul teaches, when he admonishes, “that if anything better be revealed to one sitting by, the first should hold his peace.” But there is a brief way for religious and simple minds, both to put away error, and to find and to elicit truth.
For if we return to the head and source of divine tradition, human error ceases; and having seen the reason of the heavenly sacraments, whatever lay hid in obscurity under the gloom and cloud of darkness, is opened into the light of the truth. If a channel supplying water, which formerly flowed plentifully and freely, suddenly fail, do we not go to the fountain, that there the reason of the failure may be ascertained, whether from the drying up of the springs the water has failed at the fountainhead, or whether, flowing thence free and full, it has failed in the midst of its course; that so, if it has been caused by the fault of an interrupted or leaky channel, that the constant stream does not flow uninterruptedly and continuously, then the channel being repaired and strengthened, the water collected may be supplied for the use and drink of the city, with the same fertility and plenty with which it issues from the spring?
And this it behooves the priests of God to do now, if they would keep the divine precepts, that if in any respect the truth have wavered and vacillated, we should return to our original and Lord, and to the evangelical and tradition; and thence may arise the ground of our action, whence has taken rise both our order and our origin.
Source: The Epistles of Cyprian (New Advent)