Matthew
12:22 Then was brought unto him one possessed with a devil, blind, and dumb: and he healed him, insomuch that the blind and dumb both spake and saw.
12:23 And all the people were amazed, and said, Is not this the son of David?
12:24 But when the Pharisees heard it, they said, This fellow doth not cast out devils, but by Beelzebub the prince of the devils.
12:25 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:
12:26 And if Satan cast out Satan, he is divided against himself; how shall then his kingdom stand?
12:27 And if I by Beelzebub cast out devils, by whom do your children cast them out? therefore they shall be your judges.

Beelzebub, Satan, Prince of the devils etc.  Another trinity?  Why can't they have one name?  Who knows how one would greet a biblical person.

Satan can't cast out Satan?  How shall his kingdom stand?  Satan has a Kingdom?  HUH? WHAT?

By who's authority are the Pharisee's children casting out Devils, and if the Pharisees children can cast out Devils then why are the people so amazed when Jesus does it.