Contingency Of God
If a god has a creator then he is not the God. The ultimate creator who triggered a the causal chain is the God. Even if one believes the causal chain is circular it has to have a trigger. So the one who trigger it has to be outside the causal chain and if there are more than one causal chains, the term God refers to the entity who triggered the very first causal chain. Any entity that is a part of the causal chain is not Allah. In other words, we are saying that it’s hard for human wisdom to figure out who triggered the causal chain and therefore the only possibility could be that there is an entity outside the cause and effect system who we call the Creator. There is no other rational explanation.