Such "men . . . you must not only not receive, but if it is possible not even meet"

Index of Medieval Art (Vat. gr. 1613, p. 258)

"he truly suffered even as he also truly raised himself [(ἀληθῶς ἀνέστησεν ἑαυτόν)], not as some unbelievers say, that his Passion was merely in semblance [(τὸ δοκεῖν αὐτὸν πεπονθέναι)]. . .
     ". . . I guard you in advance against beasts in the form of men [(τῶν ἀνθρωπομόρφων)], whom you must not only not receive, but if it is possible not even meet, but only pray for them, if perchance they may repent, difficult though that may be. . . .  For if it is merely in semblance [(τὸ δοκεῖν | τῷ δοκειν)] that these things were done by our Lord I am also a prisoner in semblance [(τὸ δοκεῖν)].  And why have I given myself up to death, to fire, to the sword, to wild beasts?  Because near the sword is near to God, with the wild beasts is with God [(ἐγγὺς μαχαίρας ἐγγὺς θεοῦ, μεταξὺ θηρίων μεταξὺ θεοῦ)]; in the name of Jesus Christ alone am I enduring all things, that I may suffer with him, and the perfect man himself gives me strength. . . .
     ". . . I have not thought right to put into writing their unbelieving names; but would that I might not even remember them, until they repent concerning the Passion, which is our resurrection. . . .
     "They abstain from Eucharist and prayer, because they do not confess that the Eucharist is the flesh of our Saviour Jesus Christ who suffered for our sins, which the Father raised up by his goodness. . . .  It is right to refrain from such men and not even to speak about them in private or in public. . . ."

     St. Ignatius of Antioch, Epistle to the Smyrnaeans II, IV, and V, trans. Lake, LCL (1912), 252-257.  Cf. "John and Polycarp on heretics".