This is a debatable question because each person has his or her own beliefs. You can't say that "we just name that higher being" because some people don't even believe in the supernaturals. Although I believe in God, I can't say the same with other people.
I guess you meant to say is that there is just one God for monotheistic religions but it just have different names like Allah, Yahweh, or Christ. Then again, this notion is subjected to scrutiny.