All to people that knew the Law. He laid the foundation of Christ, then presented Christ, so you must not have watch the whole video or you would of known that. Presenting Jesus without the instruction of the Law is not presenting the good news, good news of what, that the legal demands of the
law have been fulfilled in Christ.
So what's Matthew 5 about and if you didn't know Jesus' audience all knew the Law, they were under it's legal demands. Why do you think those that were enlightened by the His teachings understood it, because they knew the demands of the Law. That's why Paul writes about the Law before he writes about the righteousness that comes by faith. The Law and it's demands and judgement are what makes grace so amazing.
Romans 2:17-20, 3:19-20 But if you call yourself a Jew and rely on the law and boast in God18 and know his will and approve what is excellent, because you are instructed from the law;19 and if you are sure that you yourself are a guide to the blind, a light to those who are in darkness,20 an instructor of the foolish, a teacher of children, having in the law the embodiment of knowledge and truth........Now we know that whatever the law says it speaks to those who are under the law, so that every mouth may be stopped, and the whole world may be held accountable to God.20 For by works of the law no human being will be justified in his sight, since through the law comes knowledge of sin.
Why do you think the writer of Hebrews says 6:1-2 Therefore let us leave the elementary doctrine of Christ and go on to maturity, not laying again a foundation of repentance from dead works and of faith toward God,2 and of instruction about washings, the laying on of hands, the resurrection of the dead, and eternal judgment.
The elementary doctrines of Christ, which are in the Law and these hebrews know that, dead works is trying to be righteous by keeping the Law. This is why the so-called Church in America falls for so much false doctrine, is because they don't knew what the Gospel is. When you instruct people in the Law and the weight and penalty of it becomes a reality to them, the good news that Christ fulfilled the Law to save them from it's legal demands. They will love ?jesus because He first loved them.