* God exists as God the Father, God the Son, and God the Holy Spirit. Each one is fully God, and yet they are only one God. This is a mystery that mere humans cannot fully understand.
* God the Father sent God the Son (Jesus) into the world and he sends the Holy Spirit to his people.
* Anyone who believes in God the Son becomes a child of God the Father, and God the Holy Spirit comes to live in that person. This is another mystery that human beings cannot fully understand.