It is vitally impossible to see that the word knowledge is used into two distinct ways. Fallen man has knowledge, but no according to wisdom. Paul distinguishes these two types of knowledge. He points out that man knows God, yet morally he does not know God at all! This is not an intellectual problem. It is a moral one! Paul’s point is that all men do know God, involving covenant obligations on man’s part. Either man accepts or rejects his obligations to his Creator. Accordingly man acts either wisely or foolishly. Dr. C. Van Til, with Paul, taught that man was either a covenant-keeper who knowledge honours God, or a covenant-breaker who knows God, yet acts as a rebel (Rom. 1:18-20), and jettisons God, who is the source of all knowledge.