Gregory X, 1271–1276

souls and caring for sacred interests, bring about much spiritual progress in the Church of God and make much fruit there;

459. moreover, certain statements against the salutary state of the poor or religious mendicants, as are the beloved sons, the Brother Preachers and Minor, who in the vigor of spirit after abandoning the world with its riches, aspire to their heavenly fatherland alone with all effort;

and because also we find many other disagreements, certainly worthy of confutation and lasting confusion clearly contained;

and because, too, this same treatise was a festering center of great scandal and matter of much disturbance, and induced a loss of souls, since it distracted the faithful from ordinary devotion and the customary giving of alms and from conversion and entrance into religion,

We by the advice of our Brethren, by Apostolic authority have thought that this same book which begins thus: “Behold seeing they will cry from abroad,” and which according to its title is called “a brief tract concerning the dangers of most recent times” as something wicked, criminal, and detestable, and the rules and documents handed down in it as wicked, false, and impious, must be rejected, and must be condemned forever, and we rigidly command that whoever has that treatise will take care to burn it and entirely destroy it immediately in whole and in any of its parts within eight days from the time at which he shall know of such a rejection and condemnation of ours.

URBAN IV 1261–1264 CLEMENT IV 1265–1268

GREGORY X 1271–1276

COUNCIL OF LYONS II 1274

Ecumenical XIV (concerning the union of the Greeks)

Declaration Concerning the Procession of the Holy Spirit ¹

[The Most Exalted Trinity and the Catholic Faith]

460. In faithful and devout profession we declare that the Holy Spirit proceeds eternally from the Father and the Son, not as from two beginnings, but from one beginning, not from two breathings but from one breathing. The most holy Roman Church, the mother and teacher of all the faithful, has up to this time professed, preached, and taught this; this she firmly holds, preaches, declares, and teaches; the unchangeable and true opinion of the orthodox Fathers and Doctors, Latin as well