
“We are told by the word of the Gospel that in this His fold there are two swords—a spiritual, namely, and a temporal. […] Both swords, the spiritual and the material, therefore, are in the power of the Church; the one, indeed, to be wielded for the Church, the other by the Church; the one by the hand of the priest, the other by the hand of kings and knights, but at the will and sufferance of the priest.”
In hac ejusque potestate duos esse gladios, spiritualem videlicet et temporalem, evangelicis dictis instruimur. […] Uterque ergo est in potestate ecclesiae, spiritualis scilicet gladius et materialis. Sed is quidem pro ecclesia, ille vero ab ecclesia exercendus, ille sacerdotis, is manu regum et militum, sed ad nutum et patientiam sacerdotis.
Unam sanctam (1302)