That's more information than I asked. In fact, I didn't ask you anything.
Perhaps you regret referencing Matthew 5:17
Of course not. Why do you think I regret it?
Do you want to withdraw your statement that Christ came to fulfill the Law, since you are struggling (or somehow refusing) to say what that Law was?
Of course not. ? And, I am not struggling. I know the answer, straight from the Bible. Our Lord Jesus Christ and the Apostles tell us very clearly (1) why Christ came to earth, (2) what is the Law and the Prophets, and (3) what it means to fulfill the Law.
(1) "Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill." [Mat 5:17]
(2) "In everything, therefore, treat people the same way you want them to treat you, for this is the Law and the Prophets.
(3) "Owe nothing to anyone except to love one another; for he who loves his neighbor has fulfilled the law. [Rom 13:8]
"Love does no wrong to a neighbor; therefore love is the fulfillment of the law." [Rom 13:10]
"For the whole Law is fulfilled in one word, in the statement, 'You shall love your neighbor as yourself.'" [Gal 5:14]
"Bear one another's burdens, and thereby fulfill the law of Christ." [Gal 6:2]
"If, however, you are fulfilling the royal law according to the Scripture, 'You shall love your neighbor as yourself' you are doing well. [Jam 2:8]
He came to teach us Love, and He left with a commandment "that you love one another, just as I have loved you." [John 15:12]
The reason He was on earth: "In this is love, not that we loved God, but that He loved us and sent His Son to be the propitiation for our sins." [1 John 4:10]
He came to show that love wins; that love is eternal; that love transforms the world, where a lion lies next to a sheep.
It's not so surprising as it is awesome. For, what else can Love do?
The Scripture you put forth explains that Christ's life and death and resurrection fulfilled the law. It is His love that redeems a fallen sinner, not his own. His own ability to love, to perform good works, to care for his fellow man, are all reflections of God's love of Christ within him.
"Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified." -- Galatians 2:16
So while Christ fulfills the law, the law actually condemns men because men cannot fulfill the law themselves.
And the law is not of faith: but, The man that doeth them shall live in them. Christ hath redeemed us from the curse of the law, being made a curse for us: for it is written, Cursed is every one that hangeth on a tree" -- Galatians 3:11-13"But that no man is justified by the law in the sight of God, it is evident: for, The just shall live by faith.
Why did God make Christ a "curse for us?"