We belive in one God and we name him Father, Son, and Holy Spirit. He is one God in three Persons, a Holy Trinity. He created the world out of nothing by his Word.  He came to be our Savior as the Son of God.  He draws us to faith in Jesus by the working of his Spirit.  We worship him as Father, Son and Holy Spirit because these are the names given to us in the Bible and in the Christian tradition.