God the Creator gave us conscience when He made us. Even though it is a good thing, many people’s conscience is contaminated and even perverted by the influence of sins. We can no more utilize it as the standard for deciding between good and bad. Thanks to God who gave His Torah (the Law of Moses) to the people of Israel and through them to the whole mankind. This ‘Word of God’ is given to us as the standard of our human life in its every aspect. If a man obeys the whole ‘Torah’ he is considered to be ‘righteous.’ In other words, a man is justified by obeying the whole ‘Torah.’ Thus, Paul says, the ‘Torah of Moses’ reveals ‘the righteousness of God.’ This same ‘Torah’ reveals our sins at the same time. We know what sins are through the Torah, i.e., the teachings of God.