>>66645419I'll just let the actual Biblical scholars answer this one.
Jesus declared in the previous verse that He had not come to abolish the Jewish law and the Prophets, but to fulfill them (Matthew 5:17). Despite claims of His critics (Matthew 12:2), Jesus' purpose was not to cast aside the words God gave to Israel. Instead, His mission was to complete the exact mission those words were meant to explain (Hebrews 8:6–8). In every way, Jesus accomplished what the law demanded and fulfilled what the prophets predicted by the power of God.
Now Jesus adds forcefully that the law will not pass away, even a little bit, until everything in it is accomplished and until heaven and earth pass away. He has come to earth (Matthew 1:18) with the mission of accomplishing everything in the law. Much of this He will do through His teaching, sacrificial death, and resurrection (Mark 8:31). The rest, He will finally and fully complete in bringing the kingdom of heaven to earth in the end times (Matthew 26:64).
