fulfilled (matt 5:17)

Matthew 5:17

Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them.

When Jesus refers to the law and the prophets he is referring to the Old Testament. If Jesus came to abolish the OT then it would be of no use to us and it shouldn't be in our bibles, but he makes it clear he has not come to abolish it. If the Old Testament law still applied to us in it's entirety we would be on a path to despair as we tried to keep it, or would be forced to ignore parts, picking and choosing the sections we want to obey. But Jesus came to fulfill the OT, so it is not a burden and it is not pointless. It enriches our understanding of Jesus and the gospel.

We are no longer under the curse of failing to keep the moral law because He fulfilled it and died for our failure to keep it.

We do not need the sacrificial system because Jesus is our priest, our temple and our sacrifice. 

We don't need a king - Jesus is our King