Letter 6015: Gregory to John, Bishop of Constantinople. As the pravity of heretics is to be repressed by the zeal of a right faith, so the integrity of a true confession is to be embraced. For, if one who declares himself sound in the faith is scorned, the faith of all is brought into doubt, and fatal errors are generated from inconsiderate strictness.

Pope Gregory the GreatJohn of Jerusalem|c. 595 AD|Pope Gregory the Great|Human translated
christologyimperial politics
Theological controversy; Church council

Gregory to John, Bishop of Constantinople.

Just as the corruption of heretics must be checked by zeal for the true faith, so the integrity of a genuine confession of faith must be embraced. If someone who declares himself sound in the faith is spurned, the faith of everyone is called into doubt, and dangerous errors spring from thoughtless severity. The result is that not only are wandering sheep not brought back to the Lord's fold, but even those already inside are left exposed to the teeth of wolves. Let us consider this carefully, dear brother, and not allow anyone who truly professes the Catholic faith to be harassed under the pretext of heresy -- nor, God forbid, allow heresy to grow stronger under the guise of correcting it.

I have been greatly puzzled, then, as to why the judges you appointed in the case of John, priest of the church of Chalcedon, chose to believe rumor over truth and refused to accept his clear profession of faith. This is especially troubling given that his accusers, when asked to explain the Marcionist heresy they charged him with, openly admitted they did not know what it was. From this it is plain that they were not motivated by concern for God or justice but simply wished to harm him out of personal spite.

After holding a council, as the record of proceedings shows, and thoroughly examining everything necessary -- since we have been unable to find the aforementioned priest guilty of any wrong belief, and since the statement of faith he submitted to your appointed judges is entirely consistent with orthodox truth -- we therefore reject the sentence of those judges and, by the revealing grace of Christ our God and Redeemer, declare him by our definitive judgment to be Catholic and free from all charge of heresy.

Human translation - New Advent (NPNF / ANF series)

Latin / Greek Original

Gregorius Joanni episcopo Conslantinopolitano.

Sicut hzreticorum pravitas zelo reciz fidei com-
primenda, ita vere conſessionis est inlegritas am-
plectenda. Nam si credi fideliter conſitenti despici-
tur, cunclorum in dubiun ſides adducitur, atque er-
rores moriiſeri ex incauta di-trictione generantur.
Ei binc non solum errantes oves ad caulas minime
dominicas revocantur, sed etiam intro positz ſerinis
dentibus laniandz crudeliter exponuntur. Hoc ergo,
frater charissime, ssubtiliter perpendamus, et sub
pretextu heresis aſſligi quempiam veraciter profi-
tentem fidem catholicam non sinamus, ne quod ab-
Sit, . hazresim fieri sub emendationis magis specie
. permitiamus.

Valde autem mirati sumus cur hi qui in causa fi-
dei judices contra Joannem Chalcedonensis Ecclesize
presbyierum a vobis fucrant depulati negligentes
veritatem opinioni crediderint, et credere districte
profitenti noluerint, maxime dum accusatores ipsius
* Marcianislarum, quam memorabant, hzresim, unfle
eum reum moliebantur eſficere, interrogati quz es-
sef, nescire se maniſesla YQet proſessione respon-
derint. Ex qua re evidenter agnoscitur quia perso-
nam ipsius sine Dei respectu non jusle, sed cuntra

Revision history

  1. 2026-05-27v2.2.34-import

    Initial corpus import from New Advent / NPNF.

    Fields: letter text, metadata, source links. Source: https://www.newadvent.org/fathers/360206015.htm

Related Letters

Pope Gregory the GreatJohn of Jerusalemc. 598 AD · gregory great #8034

It is evidently a very serious thing, and contrary to what a priest should aim at, to wish to disturb privileges formerly granted to any monastery, and to endeavour to bring to naught what has been arranged for quiet. Now the monks of the Castilliensian monastery in your Fraternity's city have complained to us that you are taking steps to impose...

Pope Gregory the GreatJohn of Jerusalemc. 599 AD · gregory great #9012

Gregory to John, Bishop of Syracuse.

Pope Gregory the GreatJohn of Jerusalemc. 594 AD · gregory great #5018

Gregory to John, Bishop of Constantinople. At the time when your Fraternity was advanced to Sacerdotal dignity, you remember what peace and concord of the churches you found. But, with what daring or with what swelling of pride I know not, you have attempted to seize upon a new name, whereby the hearts of all your brethren might have come to tak...

Pope Gregory the GreatJohn of Jerusalemc. 602 AD · gregory great #12024

Some monks who came to me from the monastery of the late abbot Claudius have petitioned me that the monk Constantius should be constituted their abbot. But I was exceedingly set against them as touching their petition, because they appeared to me to be altogether of a worldly mind in seeking to have a very worldly man for their abbot. For I have...

JeromeJohn of Jerusalemc. 416 AD · jerome #137

Innocent censures John for having allowed the Pelagians to effuse the disturbance at Bethlehem mentioned in the two preceding letters and exhorts him to be more watchful over his diocese in future. The date of the letter is A.D. 417.