Jerome — as excerpted in the Catena Aurea on Matthew 13:24-30

“For room for repentance is left, and we are warned that we should not hastily cut off a brother, since one who is to-day corrupted with an erroneous dogma, may grow wiser tomorrow, and begin to defend the truth; wherefore it is added, Lest in gathering together the tares ye root out the wheat also.”