"Consider polytheism (many gods) versus monotheism (one God). We can ask: Why involve extra entities when just one will suffice? All things being equal, if one God (monotheism) is adequate for the task of creating and sustaining the universe, why bring in multiple deities? There is no reason to multiply additional entities beyond necessity — a principle known as “Ockham’s razor.” Extra gods can be plausibly eliminated on the basis of explanatory simplicity. One God will do just fine."
- Paul Copan, Is Naturalism a Simpler Explanation Than Theism?