Jesus tells us not to assume He comes to destroy the Law; rather He comes to fulfill the Law. He warns that unless we are more righteous than the scribes and Pharisees, we “will never enter the kingdom of heaven.” (Matthew 5:20) It is not enough to refrain from murder; we must refrain from being angry or insulting. It is not enough that we refrain from adultery; we must refrain from lust. It is not enough that we keep our oaths; we must not make oaths at all. It is not enough to love our neighbor; we must also love our enemy. It is not enough to be righteous; we must not be righteous “in front of people, to be seen by them.” (Matthew 6:1) It is not enough to pray; we must not pray in public “to be seen by people” or “babble like the idolators, since they imagine they’ll be heard for their many words.” (Matthew 6:5,7) It is not enough to fast; we must “put oil on [our] heads, and wash [our] faces.” (Matthew 6:17)
“Whoever breaks one of the least of these commands and teaches people to do so will be called the least in the kingdom of heaven.” (Matthew 5:19)
Looking in the mirror, I see the least in the kingdom of heaven for I break the least of these commands more times than I can count. I find no room in my heart for self-righteousness. The only righteousness I have belongs to another — my righteousness rests solely on the finished work of Jesus Christ, who fulfills the Law and the Prophets.