I understand what you're saying. But again...not everyone believes God gave commandments in the first place.
Personally, I believe that the only Word of God is the Universe itself. Thomas Paine sums it up nicely...
"There is a Word of God; there is a revelation. The word of God is the creation we behold: and it is in this word, which no human invention can counterfeit or alter, that God speaketh universally to man...It is only in the creation that all our ideas and conceptions of a word of God can unite. The Creation speaketh a universal language, independently of human speech or human language, multiplied and various as they be. It is an ever existing original, which every man can read. It cannot be forged; it cannot be counterfeited; it cannot be lost; it cannot be altered; it cannot be suppressed. It does not depend upon the will of man whether it shall be published or not; it publishes itslef from one end of the earth to the other. It preaches to all nations and to all worlds; and this word of God reveals to man all that is necessary for man to know of God."
He goes in more depth than that, but we're off topic and I don't really want to get into a huge theist-vs.-deist argument. My point was just that it's possible to believe in God and disagree that God literally speaks to us individually.