What Paul is saying is that even though a person may not know God’s law, he will nevertheless be judged by it. Even if he transgressed God’s law unknowingly, he is guilty of sinning before God. He is still culpable! But Paul is bringing a greater indictment against those who know the law of God and wilfully disobeys it. He distinguished between the hearers of the law in verse 13 with the doers of the law. Only the doers of the law would find favour in the sight of God. The hearer who has a head knowledge of the truth and is not convicted to obey it will face God’s judgement.