It may not be unjustly expected that some reasons should be assigned for limiting the number of the Ecumenical Synods to seven. There is no need here to enter into any proof that Nice, I. Constantinople, Ephesus and Chalcedon are Ecumenical, since so long ago as the time of St. Gregory the Great, that Saint and Doctor said of them: “I venerate the first four Ecumenical Councils equally with the Four Gospels (sicut quatuor Evangelia),” and no one has been found to question that in so saying he gave expression to the mind of the Church of his day. Of the fifth and sixth synods there never was any real doubt, although there was trouble at first about the reception of the fifth in some places. The ecumenical character of the seventh is not disputed by East or West and has not been for near a thousand years, and full proof of its ecumenicity will be found in connection with that council. There is therefore no possible doubt that these seven must be included, but it may be asked why certain others are not here also.