Gods?

​A Protestant preacher once told me that he disliked Jews because their God was not the same God as the God we Christians worship. He implied that the reason for his dislike was the blame he placed on the Jews for the death of Christ.  But I asked him how many Gods are there?  Isn’t the God of the Jews the same God of us Christians, I asked?  (I will not bring into this equation the question of the God of the Muslims.)  My answer to the dilemma is simple and Protestants confirm my logic on a daily basis.  There can be only one God and He is the God of all of humanity.   My reasoning is straightforward.  Protestants systematically use the Old Testament in their preaching every day.  And the God of the Old Testament was and still is the Jewish God.  The Old Testament was composed and propagated by the Jews for 1000 years before Christ. And although Christ existed and may have been referenced a number of times in the Old Testament, Christ had not yet appeared in human form. But God in His omniscience and foreknowledge sent a part of himself into humanity at the perfect time in human history. God knew that the destiny of the Jew was to kill His Son.  But God also knew that the Jew would soon be in diaspora. Within 40 years after the death of Christ, a new religion was founded by God Himself and the Jews were dispersed to the four corner of the world by the destruction of Jerusalem by the Romans.  This new religion, then recognized through revelation, that God as a trinity, Father Son and Holy Spirit, had accomplished for humanity what humans could not achieve through the Jews.  God conquered sin and death.  But because we are humans, schisms developed.  First the Muslims created a break from Christian and Jewish orthodoxy in 630.  Then the Catholics underwent schism between the Orthodox and the Roman Rite in 1054.  The final schism occurred within the Roman Rite in 1521 with the Protestant Reformation. Now Catholics, Protestants, Jews and Muslims pray to and worship the one, omnipotent God in different ways.  But our father, God, has remained one and the same for eternity.