“It is evident,” said Wilfrid, “that Anatolius was a most holy, learned, and commendable man; but what have you to do with him, since you do not observe his decrees? For he undoubtedly, following the rule of truth in his Easter, appointed a cycle of nineteen years, which either you are ignorant of, or if you know it, though it is kept by the whole Church of Christ, yet you despise it as a thing of naught. He so computed the fourteenth moon in our Lord’s Paschal Feast, that according to the custom of the Egyptians, he acknowledged it to be the fifteenth moon on that same day in the evening; so in like manner he assigned the twentieth to Easter-Sunday, as believing that to be the twenty-first moon, when the sun had set. That you are ignorant of the rule of this distinction is proved by this, that you sometimes manifestly keep Easter before the full moon, that is, on the thirteenth day. Concerning your Father Columba and his followers, whose sanctity you say you imitate, and whose rule and precepts confirmed by signs from Heaven you say that you follow, I might answer, then when many, in the day of judgement, shall say to our Lord, that in His name they have prophesied, and have cast out devils, and done many wonderful works, our Lord will reply, that He never knew them. But far be it from me to speak thus of your fathers, for it is much more just to believe good than evil of those whom we know not. Wherefore I do not deny those also to have been God’s servants, and beloved of God, who with rude simplicity, but pious intentions, have themselves loved Him. Nor do I think that such observance of Easter did them much harm, as long as none came to show them a more perfect rule to follow; for assuredly I believe that, if any teacher, reckoning after the Catholic manner, had come among them, they would have as readily followed his admonitions, as they are known to have kept those commandments of God, which they had learned and knew. “But as for you and your companions, you certainly sin, if, having heard the decrees of the Apostolic see, nay, of the universal Church, confirmed, as they are, by Holy Scripture, you scorn to follow them; for, though your fathers were holy, do you think that those few men, in a corner of the remotest island, are to be preferred before the universal Church of Christ throughout the world? And if that Columba of yours, (and, I may say, ours also, if he was Christ’s servant,) was a holy man and powerful in miracles, yet could he be preferred before the most blessed chief of the Apostles, to whom our Lord said, ‘Thou art Peter, and upon this rock I will build my Church, and the gates of hell shall not prevail against it, and I will give unto thee the keys of the kingdom of Heaven?’ ”(475)