I'm not a scientist but H2O can be....water (liquid).. Ice (solid)... steam (vapor) all these are H2O separately or together right? Can't you have a body of water with ice in it and when the sun hits it steam will rise off it. the three are distinctly different but the three are all H2O. So if something as simple as H2O can be three in one why can't the God of the Universe be?