17“Don’t misunderstand why I have come. I did not come to abolish the law of Moses or the writings of the prophets. No, I came to accomplish their purpose.18I tell you the truth, until heaven and earth disappear, not even the smallest detail of God’s law will disappear until its purpose is achieved.19So if you ignore the least commandment and teach others to do the same, you will be called the least in the Kingdom of Heaven. But anyone who obeys God’s laws and teaches them will be called great in the Kingdom of Heaven.
20“But I warn you—unless your righteousness is better than the righteousness of the teachers of religious law and the Pharisees, you will never enter the Kingdom of Heaven!
That last line had to make Jesus’ listeners shudder.  When it came to being good, the Pharisees were it.  They were so careful about following the law, that when they harvested their gardens they would count the individual peas and give 1/10 to the temple.  The Pharisees were crazy about following the rules.  How could anyone be more righteous than them?
Only through Jesus.  While the Pharisee may well have been the “goodest” of men, they were still filthy rags compared to God.  We all are.  Only when we admit our sinfulness and accept that we depend totally on the sacrifice of Jesus on the cross in our place, only then are we covered with the righteousness of Jesus.  And Jesus’ righteousness is true and complete righteousness worthy of God because he is God.
So none of the law or scripture is abolished.  It is all fulfilled in Jesus’ death and resurrection, and our accepting or rejecting of Him.  That is what the whole book is about, and it is what are whole life is about.
Lord, change me so I may fulfill your purpose for your glory forever and ever Amen.  Beginner’s Online Bible Study *obbs*