In the Liber Diurnus the Formulary of the Roman Chancery (from the fifth to the eleventh century), there is found the old formula for the papal oath...according to which every new Pope, on entering upon his office, had to swear that "he recognised the sixth Ecumenical Council, which smote with eternal anathema the originators of the heresy (Monotheletism), Sergius, Pyrrhus, etc., together with Honorius" (Charles Joseph Hefele, A History of the Councils of the Church (Edinburgh: Clark, 1896), Volume V, pp.
In the Liber Diurnus, the Roman Chancery Formulary (from the fifth to the eleventh century), there is discovered an ancient oath formula...according to which every new Pope, upon taking office, had to swear that "he acknowledged the sixth Ecumenical Council, which condemned with eternal anathema the originators of heresy (Monotheletism), Sergius, Pyrrhus, etc., along with Honorius" (Charles Joseph Hefele, A History of the Councils of the Church (Edinburgh: Clark, 1896), Volume V, pp.