he most discussed moral argument for God’s existence is currently the argument concerning the ontological basis for objective moral values:
Although consistent atheists must avoid accepting both premises of this logically valid syllogism, it’s not hard to find atheists who endorse either premise. Hence, this argument can be defended by quoting exclusively from atheists. After sketching a defence of both premises, and dealing with the frequent confusion between epistemology and ontology amongst its critics, this paper will focus upon defending the first premise against two objections from atheist Russ Shafer-Landau’s otherwise excellent book Whatever Happened to Good and Evil? (Oxford, 2004).