You are confusing Christians with Catholics. Many Catholics do not consider themsleves Christians, because they believe that Mary is the mother of God. In fact, they even pray to her. Mary is not the mother of God. She is the mother of Jesus. I know that must sound confusing, but actually it is not. She is the mother of the biological Part of Christ - not the mother of His divinity. He is true man from true man and true God from true God. Catholics, however, believe this too. I was born and raise Catholic. My family doesn't understand why I don't identify with being Catholic. They pray to Mary, they confess their sins to a priest whom they call father. Jesus said, "Call no man your father on earth for one is your Father in heaven." There are many other points that I don't agree with being Catholic. Nevertheless, I agree with Keloti. Those who choose to say we believe in 3 God's are just wanting to believe their own ideas of the trinity concept and not what ours is. I believe there is only one God.