Galatians 3:19-22 Why, if we are saved by grace, and God had already established His promise to save the children of faith, di God then go and add the law? Surely he changed his mind, right? He decided to add the law because His plan changed, right? Paul answers in exceptionally clear terms. No! The law was never given as a means of giving life. The law has a wholly other purpose. It is to reveal and even increase transgression.