I have tried finding a factbook article on the beliefs of the ancient Israelites but cannot find anything. Can someone point me in the right direction?
Either you use the OT (presenting a sycretistic diety mix, both among most of the kings, and the accused Israelites, by the prophets), or archaeological writings that discuss the dissonances. But there's little actual data.
I have tried finding a factbook article on the beliefs of the ancient Israelites
Try https://beta.app.logos.com/search?kind=semantic&q=beliefs+of+the+ancient+Israelites
John Walton, https://www.logos.com/product/6046/ancient-near-eastern-thought-and-the-old-testament