1. God came as "Father" in the Old Testament
2. God came as "Son" in the New Testament
3. God came as the "Holy Spirit" after Christ ascended into Heaven (which Christ promised to his apostles - and it's interesting, but the Holy Spirit is the only being in creation who has allowed us to affirm human conduct and virtue 2,000 years after we were told of the effects He has on an individual), and that is who is still with us.