While Constantine at the beginning of his reign (313) declared complete religious liberty, and kept on the whole to this declaration, yet he confined his favours to the orthodox hierarchical church, and even by an edict of the year 326 formally asserted the exclusion from these of heretics and schismatics.
Cyprian was the first to proclaim the identity of heretics and schismatics by making a man's Christianity depend on his belonging to the great episcopal church confederation.
The distinction between heretics and schismatics was preserved because it prevented a public denial of the old principles, because it was advisable on political grounds to treat certain schismatic communities with indulgence, and because it was always possible in case of need to prove heresy against the schismatics."(Harnack's History of Dogma, ii.
As even" the Christian virtues of the heretics were described as hypocrisy Heretical .
Tertullian declares that the church can have no communion with the heretics, for there is nothing common; as they have not the same God, and the same Christ, so they have not the same baptism (De bapt.