Galatians 3:24, 25
The Law very clearly was used under the Old Covenant as a tutor, a set of rules to basically keep us in line. The Law was there for us to follow, and if we kept it entirely, we would be perfect and could obtain salvation.
Unfortunately, due to the fall of man in the Garden of Eden, evil had control over the earth and we mere men could not live up to the standards of the Law. We kept falling short and were unable to obtain perfect living by the Law.
The Law showed us that we were in need of someone to save us. We were unable to do it ourselves. The Law, through its rules and regulations were ineffective to bring us to salvation.
Fortunately, Jesus came and lived on this earth and was able to fulfill the Law. He lived a perfect life and fulfilled every part of the Law up through His death on the cross.
At that point, He said ‘It is finished’, meaning that fulfillment of the Law was complete in Him and He was now the perfect sacrifice for us. The Old Covenant was a thing of the past and a New Covenant began at His resurrection.
Now we live through love. We love God with all our heart, soul, strength and mind, and we love others as ourselves (Galatians 5:14).
Jesus lives in us and He has fulfilled the Law. We now live by faith in Christ and are saved through His grace. We no longer need to worry about trying to fulfill the Law or any part of the Old Covenant.
Jesus fulfilled all that was needed to provide for our salvation. We live through faith in Christ and depend on Him solely for our salvation. We are no longer slaves to the Law, but we are sons of God (John 15:15). We are righteousness in God’s eyes because He sees Jesus in us.