MCBC 11/09/2014 How do we fit into the equation of the three in one. The father the Holy Spirit and the son. One in three-three that bear witness. Father ,son and Holy Spirit. Oneness is one God who manifest himself in the three forms. God create man in his image, he then gave his son to save man and sent the Holy Spirit to solidify. The spirit, the blood and the water all are representative of the one god.