jews do not worship ba'al, their semite ancestors (canaanites) did. before monothiesm, they had a pantheon of gods and the most powerful was "el" (think isra-el) meaning lord and his wife asherah (queen of heaven) and his son "ba'al (the lord".  moloch is not a god, moloch is the name given to the sacrificial burning of children or offerings to ba'al (this is likely what abraham was called to perform in the taking of his son isaac's life).
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