Augustine of Hippo
Catena Aurea · Lukasevangelium 11
But he, knowing their thoughts, said unto them, Every kingdom divided against itself is brought to desolation; and a house divided against a house falleth. If Satan also be divided against himself, how shall his kingdom stand? because ye say that I cast out devils through Beelzebub. And if I by Beelzebub cast out devils, by whom do your sons cast them out? therefore shall they be your judges. But if I with the finger of God cast out devils, no doubt the kingdom of God is come upon you.
(de cons. Ev. l. ii. c. 38.) That Luke speaks of the finger of God, where Matthew has said, the Spirit, does not take away from their agreement in sense, but it rather teaches us a lesson, that we may know what meaning to give to the finger of God, whenever we read it in the Scriptures.