I once made up a game: what if you could only use a word once in your lifetime and afterward you had to find new ways of expressing the same thought? The first time I could ask you to “come.” The next time I might have to say, “Advance.” “Draw near.” “Move forward.” “Progress in my direction.” The responsibility to find other exacting terms was exciting as it opened up possibilities in the use of language and challenged the brain.
Now imagine applying the rules of that game to the use of the word “God.” Finding other ways to express this word would probably extract what people really mean by it from the shadows. Some may say none, one, or multiple of the following: Judge. Energy. Father. Mother. Creator. Nothingness. Fighter. Defender. Being. Universe. Mystery. Love. The man upstairs. I do not know.
In the case of “God,” the glaring truth is that, within the same word and even within the same religious worldview, there are multiple understandings of what necessarily is an abstract noun, and thus beyond the complete grasp of language.