Gregory the Great, on John 15:22

“If I had not come, and spoken to them, they would not have sin; but now they have no excuse for their sin.”

“(xxv. Moral.) It is one thing not to do good, another to hate the teacher of goodness; as there is a difference between sudden and deliberate sins. Our state generally is that we love what is good, but from infirmity cannot perform it. But to sin of set purpose, is neither to do nor to love what is good. As then it is sometimes a heavier offence to love than to do, so is it more wicked to hate justice than not to do it. There are some in the Church, who not only do not do what is good, but even persecute it, and hate in others what they neglect to do themselves. The sin of these men is not that of infirmity or ignorance, but deliberate wilful sin.”

Imported from an open dataset — not yet checked against the printed edition.