Wherefore we require this first and foremost for the keeping of perfect harmony, that, according to the wholesome rule of the holy Fathers that there should be two meetings of bishops every year, three of you should appear without fail each time, on the 29th of September, to join in the council of the brethren: for thus, by the aid of God’s grace, we shall the easier guard against the rise of offences and errors in Christ’s Church: and this council must always meet and deliberate in the presence of the blessed Apostle Peter, that all his constitutions and canonical decrees may remain inviolate with all the Lord’s priests.