There's some dispute, but Baal zebub seems to have been a derogatory term used by ancient israelites against the philistine deity, Ba'al (lord), calling him baal zebub, or the lord of flies.

Occult circles have demonized the figure over time, but yea. Ancient racists who thought of the philistines as pests, and blatantly insulted their religion by renaming their lord to 'lord of the flies'.

[–] woodenghost@hexbear.net 6 points 1 week ago* (last edited 1 week ago)

And just to come full circle:

Baalbek, named after Baal, is an ancient city in the Beqaa plane in Lebanon. It was known as the bread basket of the Roman empire. The Romans build the largest temples outside of Rome there and allowed worship of Baal to continue in the large entrance building in front of the Jupiter temple. The temples stood in good condition for centuries and are now under threat by IDF bombing, which has already come as close as 500 meters, while every building in the city has been declared a target and it's people ordered to evacuate.