Luke 11:15

But some of them said
The Pharisees, ( Matthew 9:34 ) ( Matthew 12:24 ) who could not bear that he should be thought to be the Messiah, and therefore put an ill construction on the miracle:

he casteth out devils through Beelzebub, the chief of devils;
in several copies he is called Beelzebul, and in the Arabic and Ethiopic versions; which last adds these words, "and he answered and said, how can Satan cast out Satan?" (See Gill on Matthew 12:20).