American Tract Society Bible Dictionary
"the prince of the devils," Matthew 12:24 . This name is derived from Baal-zebub, an idol deity among the Ekronites, signifying lord of flies, fly-baal, fly-god, whose office was to protect his worshippers from the torment of the gnats and flies with which that region was infested, 2 Kings 1:2,3,16 . It is also sometimes written Beel- sebul, which signifies probably the dung-god. The Jews seem to have applied this appellation to Satan, as being the author of all the pollutions and abominations of idol-worship.
These files are public domain and are a derivative of the topics are from American Tract Society Bible Dictionary published in 1859.
Rand, W. W. Entry for 'Beelzebub'. American Tract Society Bible Dictionary. https://www.studylight.org/dictionaries/eng/ats/b/beelzebub.html. 1859.