Very good article, Randy. But I am not sure it answers the original question. I think the answer to the original question is that God has given us the ability to discern right from wrong based upon His word. And when we come to Him in obedient, saving faith we also are given His Spirit to guide us in our lives. We KNOW whether or not what we have done is right or wrong, and so, therefore, we will be able to know that what we are experiencing is the result of God because what we have done has grieved His Spirit (Ephesians 4:30).