From the Holy Gospel according to Matthew
At that time, Jesus said to the people a parable: The kingdom of heaven is likened to a man that sowed good seeds in his field. And so on.
Quest. Evang. Matth. xi., Bk. 4.
When the Shepherds of the Church wax careless, and since the Apostles sleep the sleep of death, cometh the devil, and soweth them whom the Lord calleth a seed of evil-doers. Now, are these seed of evil-doers the heretics, or Catholics of bad lives? It is possible to call even the heretics a seed of evil-doers because they have sprung up from the seed of the Gospel, and been begotten in the Name of Christ, though afterwards they have turned after crooked ways and lying doctrines.
- St Augustine