It depends on what Bible translation you use as to how you see man's image in creation (Genesis). Some Bibles say man was created in His image and other Bibles say man was created in our image. Is that a mystery?
If man is made of spirit, soul, and body and we are made in His image, then God is also spirit, soul, and body. That's three in one. I understand that God is God the Father, Jesus Christ, and the Holy Spirit. The roles are vast and all in unity.