In fact Devonian, it seems that you are actually worshiping some spirit that supposedly inhabited some ancient Greek burial mound and that they called Zeus.
http://www.etymonline.com/index.php?term=god
"Old English god "supreme being, deity; the Christian God; image of a god; godlike person," from Proto-Germanic *guthan (cf. Old Saxon, Old Frisian, Dutch god, Old High German got, German Gott, Old Norse guð, Gothic guþ), from PIE *ghut- "that which is invoked" (cf. Old Church Slavonic zovo "to call," Sanskrit huta- "invoked," an epithet of Indra), from root *gheu(e)- "to call, invoke."
But some trace it to PIE *ghu-to- "poured," from root *gheu- "to pour, pour a libation" (source of Greek khein "to pour," also in the phrase khute gaia "poured earth," referring to a burial mound; see found (v.2)). "Given the Greek facts, the Germanic form may have referred in the first instance to the spirit immanent in a burial mound" [Watkins]. Cf. also Zeus."