Romans 2:14 NASB
“For when Gentiles who do not have the Law do instinctively the things of the Law, these, not having the Law, are a law to themselves,”
The Law of God is in harmony with the nature of man. Despite sin and its corruption in the heart of mankind there is still the stamp of God’s image on every human being. In Genesis 1:27 we see that God has made man in His own image, this image though distorted by sin is not gone. We know this by nature. Even without the Mosaic Law, man knows instinctively there is right and wrong. Right and wrong are not culturally created nor simply philosophical in origin. From Scripture we know that they are imprinted in our spiritual DNA. Even before the Law was given to the Hebrew people, right and wrong were known by people on the earth. Cain knew what he did was wrong when he committed murder upon Abel. God warned him beforehand that sin was crouching at the door. Cain knew both instinctively and by what God had spoken to him that he was wrong. Yet, he chose to sin. Noah knew the righteousness of God and preached it (2 Peter 2:5).
Even without the actual Law of God, man knows the Law instinctively by his spiritual DNA being that from God and by physical nature itself. After the fall of Adam and Eve, God did not leave mankind without reason or morality. Man simply chooses to ignore that internal Law of God. Out of all the people on the earth, Noah was righteous and obeyed that internal Law that was stamped on his heart. Its sad to think that only he and his family were willing to submit to this righteous Law of God, but it is also very telling of the actual state of man. Though he has this Law, he is not unable, but highly unwilling to obey it. This unwillingness to obey it is the primary reason for most of the corruption and wickedness in the world. We blame so much on Satan and yet forget to look at ourselves as the ones who choose to disobey not only the internal Law God has given us but the actual Law written on stone tablets. This is not to discount the wicked work of Satan but t remember that we choose to sin against God despite having the moral code of God within us.
Paul’s reason for comparing the Law of Jews and the internal Law of Gentiles is to show that all mankind is without excuse before God. We all know what is right and wrong, even without an actual Law written out on tablets for us. This all ties back to Paul’s argument that none are unjustly judged by God, all are condemned for breaking the Law. It may seem unfair because of the propensity we have towards sin because of the broken nature Adam passed onto us and being in a wicked world, but this simply points us towards a Savior who was sinless and didn’t break the Law.