Beelzebub in the Bible

Matthew 10:25 It is enough for the disciple that he be as his master, and the servant as his lord. If they have called the master of the house Beelzebub, how much more shall they call them of his household?
Matthew 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.
Matthew 12:27 And if I by Beelzebub cast out devils, by whom do your children cast them out? therefore they shall be your judges.
Mark 3:22 And the scribes which came down from Jerusalem said, He hath Beelzebub, and by the prince of the devils casteth he out devils.
Luke 11:15 But some of them said, He casteth out devils through Beelzebub the chief of the devils.
Luke 11:18-19 If Satan also be divided against himself, how shall his kingdom stand? because ye say that I cast out devils through Beelzebub. 19 And if I by Beelzebub cast out devils, by whom do your sons cast them out? therefore shall they be your judges.

2 Kings 1:2 And Ahaziah fell down through a lattice in his upper chamber that was in Samaria, and was sick: and he sent messengers, and said unto them, Go, inquire of Baalzebub the god of Ekron whether I shall recover of this disease.