The Bible starts from Genesis 1:1 to tell us that God created "heavens", which is the invisible realm, and the "earth" the visible realm. The word "God" - "Elohiym", though plural, is translated to "Theos" in Greek, not "theoi" (pl.). It is not a name, but the character of who and what He is. The word describes a "self-existing", "self-sufficient" one that needed nothing to exist. Though difficult to understand, this is why He and only He qualifies for the title "God".