When is it believed god spoke to Abraham to begin the Jewish faith?
Abraham was a monotheist who believed that the worship of the One God was for all Mankind. He was not, therefore, a Jew. Judaism is a name given to the later followers of Moses. In fact, even Moses did not teach Judaism, for Judaism is exclusive to the Jewish people. He did not teach that. that was a corruption of the original faith. All true Prophets of God taught that the One God is for EVERYONE – not just one people.