Glossa Ordinaria
Catena Aurea · Matthäusevangelium 12
And Jesus knew their thoughts, and said unto them, Every kingdom divided against itself is brought to desolation; and every city or house divided against itself shall not stand; And if Satan east out Satan, he is divided against himself; how shall then his kingdom stand?
(ord.) He holds them therefore in this dilemma. For Christ casts out dæmons either by the power of God, or by the Prince of the dæmons. If by the power of God, their accusations are malicious; if by the Prince of the dæmons, his kingdom is divided, and will not stand, and therefore let them depart out of his kingdom. And this alternative He intimates that they had chosen for themselves, when they refused to believe in Him.