I didn't pick man because man had what you call three elements. I picked man because man is what God created in his image.
ahhh , what about the man who miss his mind that mean we have 2 flesh and spirit ? or drunk , is this man also image of God ? where is the mind here ?
otherwise ,acuatly no one saw the image of God , even Moses (pbuh) could not see HIM (when Moses ask to see the God) , he just talk to him .
the theory of trinity started after the rise of Jesus (phub) , the question is why God did not represent Him self before to his messangers (Adam and Noah , Moses , Solomon pbut .....etc ) that He is two (the creator and holy spirit) ,and he would maybe becomes 3 soon (Jesus pbuh) !!!!!
the old testement as I know never represent God as two or there
God is ONE for all the precedent messangers (before the writers of new testement )