Natural Law: Universal in Scope Moral in Design
The Biblical Doctrine of Available Light From back cover - The God as Creator has set in motion a grand purpose and natural order of things through the senses and the power of reason. "That which is known about God is evident within them, for God made it evident to them" (Romans 1: 19).
It is apparent, obvious. Everyone who has ever lived is responsible for knowing right and wrong based upon this natural revelation. Through it everyone can make moral decisions by observing the created order and this moral compass. The general revelation of the Natural Law, to which everyone is accountable, is separate from special biblical revelation.