Abstract
A number of years ago, James Rachels presented an argument for the necessary non–existence of God. It was based upon a supposed inconsistency between worship and what might be called ‘autonomous moral agency’. In Rachels' view, one person's being the worshipper of another is partially determined by the way in which it is appropriate for the first to respond to the commands of the second. In brief, a worshipper's obedience to commands should be ‘ unqualified ’. Rachels thought that there was some kind of incoherence in the requirement that an autonomous moral agent respond to commands in this way. He concluded that there could be no being who, like God, was alleged necessarily to be a fitting object of worship