We also know that other local creeds were revised about the same time and in the same way. In the next place, the occurrence of a revised Jerusalem creed in the _Ancoratus_ is natural. Epiphanius was past middle life when he left Palestine for Cyprus in 368, and never forgot the friends he left behind at Lydda. We are also in a position to account for its ascription to the council of Constantinople. Cyril's was a troubled life, and there are many indications that he was accused of heresy in 381, and triumphantly acquitted by the council. In such a case his creed would naturally be examined and approved. It was a sound confession, and in no way heretical. From this point its history is clearer. The authority of Jerusalem combined with its own intrinsic merits to recommend it, and the incidental approval of the bishops at Constantinople was gradually developed into the legend of their authorship. [Sidenote: The rest of the canons.] The remaining canons are mostly aimed at the disorders which had grown up during the reign of Valens. One of them checks the reckless accusations which were brought against the bishops by ordering that no charge of heresy should be received from heretics and such like. Such a disqualification of accusers was not unreasonable, as it did not apply to charges of private wrong; yet this clerical privilege grew into one of the worst scandals of the Middle Ages. The forged decretals of the ninth century not only order the strictest scrutiny of witnesses against a bishop, but require seventy-two of them to convict him of any crime _except_ heresy. Another canon forbids the intrusion of bishops into other dioceses. 'Nevertheless, the bishop of Constantinople shall hold the first rank after the bishop of Rome, because Constantinople is New Rome.' This is the famous third canon, which laid a foundation for the ecclesiastical authority of Constantinople. It was extended at Chalcedon [Sidenote: 451.] into a jurisdiction over the whole country from Mount Taurus to the Danube, and by Justinian into the supremacy of the East. The canon, therefore, marks a clear step in the concentration of the Eastern Church and Empire round Constantinople. The blow struck Rome on one side, Alexandria on the other. It was the reason why Rome withheld for centuries her full approval from the council of Constantinople. [Sidenote: 1215.] She could not safely give it till her Eastern rival was humiliated; and this was not till the time of the Latin Emperors in the thirteenth century. [Sidenote: Second edict defining orthodoxy.]