What is this fear of God? It is the nonnegotiable motivator of the spiritual person. God, His presence, His will, and His glory are the reason the spiritual person does what he does. He has a single motivation in his life – to live so as to please his Lord. He does not live for his own pleasure or the pleasure of others. He does not live for what he can possess. He does what he does because God is and has spoken. This is the sole guidance system for his existence. He does what he does not because someone is watching, or out of fear of the consequences, but ultimately because of a deep, worshipful love and reverence for God. The thought of knowingly and purposefully disobeying Him is unthinkable.
Paul David Tripp