And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the messenger of Satan to buffet me, lest I should be exalted above measure.
All Commentaries on 2 Corinthians 12:7 Go To 2 Corinthians 12
Augustine of Hippo
AD 430
“And so,” they ask, “is the devil good because he is useful?” On the contrary, he is evil insofar as he is the devil, but God who is good and almighty draws many just and good things out of the devil’s malice. For the devil has to his credit only his will by which he tries to do evil, not the providence of God that draws good out of him. .