Some people, intent on severe disciplinary precepts, admonish us to rebuke the restless and not to give what is holy to dogs, to consider a despiser of the church as a heathen, to cut off from the united structure of the body the members who causes scandal. These may so disturb the peace of the church that they try prematurely to separate the wheat from the chaff before the proper time, and blinded by this pretext, they themselves then become separated from the unity of Christ.

Saint Augustine — From Faith and Works 4.6