Beelzebub therefore is interpreted, The man of flies, wherefore from this most unclean worship they called him the Prince of the dæmons. Having therefore nothing more mean to cast upon the Lord, they said that He cast out dæmons by Beelzebub.
Therefore, Beelzebub is understood to be The man of flies, hence from this filthy worship they referred to him as the Prince of demons. Having nothing else to accuse the Lord with, they claimed that He cast out demons by means of Beelzebub.