The ultimate end of general revelation is that it leaves people without excuse for failing to recognize the nature of their Creator. But it conveys nothing regarding the way by which a fallen human being might gain access to or secure reconciliation with his Creator to escape judgment. That is why God deemed it necessary to also reveal Himself directly through special revelation. He did it so that fallen humans would know the fullness of God, how to be redeemed from God’s wrath toward sinners, and how to live and please God.
John MacArthur