Physical brains are subject to the laws of physics; mental states are subject to the laws of logic. Those who think mental states are entirely physical hold a logically contradictory position. In order to think rationally about their thoughts , they must have the freedom to do so, but this freedom is unavailable if the laws of physics and chemistry are controlling their thoughts.
J. Warner Wallace, God's Crime Scene: A Cold-Case Detective Examines the Evidence for a Divinely Created Universe
brain, christianity, dualism, god, mind, science