Hmm ... *thinks* If I remember rightly, while Moses was up on Mt Sinai, the Israelites decided to melt their gold (how did they have gold?!

) and building a statue of a golden calf, then worshipping it etc.
When Moses came down with the tablets and saw this, he nearly had a conniption.

In his anger, he smashed the tablets. Then he had to go back up and get them re-made. That's the story, anyway.
Some of this actually makes sense. In antiquity, bull worship was common in many cultures - not just in the Mediterranean areas, but in Mesopotamia (the Fertile Crescent) and in India too. Hathor, The Egyptian sky goddess, has bull horns (and had bulls sacrificed to her). Both the Romans and Gaulish Celts used to sacrifice bulls to ensure prosperity. The Minoans of Crete had bulls as a central motif of their religion. And, of course, cattle are sacred in India and always have been. (As an aside, for a very long time and in many cultures, owning cattle was a measurement of how rich you were).
So, maybe after Moses had been up on Mt Sinai for a long time, the ancient Israelites decided that he wasn't coming back, and thought that having
some sort of god was better than no god at all.
