You can believe in a god or gods, but not worship them. Devil worshipers believe in God but obviously do not worship Him. Some religions themselves do not have a god. One can be religious and not believe in God.
Perhaps you are just confused in that one can hold a belief but not be religious about it.
GTA was implying that a person can be religious without following any specific religion, which by his standards qualifies as being non-religious as they do not follow any established doctrine.
You don't choose what definition someone else is using. They choose it. Especially when clarifying on a specific contradiction such as this. Perhaps he could have said, "One can believe in God without adhering to any established religion," to make it clear to you what he meant.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson
Last edited by Tommycat; 12-17-2009 at 06:36 PM.