I prefer to go by how the bible defines it.
Insult begats insult. In other word you are implying I don't.
James 2:8 If you really fulfill the royal law according to the Scripture, “You shall love your neighbor as yourself,” you do well;
The Royal Law is the greatest commandments
And is written in the Book of the Law,
Lev 19:18 Thou shalt not avenge, nor bear any grudge against the children of thy people, but thou shalt love thy neighbour as thyself: I am the LORD.
As is not having respect of person's position in life.
Lev 19:15 Ye shall do no unrighteousness in judgment: thou shalt not respect the person of the poor, nor honour the person of the mighty: but in righteousness shalt thou judge thy neighbour.
And while we are at it lets consider verses 1:28 and 29 . These teachings are found also in the Old Testament. In Ps., Pro., and Is. to name a few.
So in this discourse we find that James through God names teachings that are through the Holy Writ. not just on the Tables of stone.
Jas 2:8 If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well:
Jas 2:9 But if ye have respect to persons, ye commit sin, and are convinced of the law as transgressors.
Then we have verse 10 which starts with the word for. As you know that means what is about be said is the reason or a continuation to what was said. In other words it is the same context and law is being said in relation to the ones already mentioned.
Jas 2:10 For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.
As we continue, we have the use of the word "for" again in verse 11 continuing the same context adding the Ten commandments to what he means when speaking of the Law.
In summary we have God through James first speaking from the Psalms and Proverbs. And then Leviticus. And in closing this discourse He brings the Ten into it. So one must surmise the Law is actually the Book of the Law, Psalms and Proverbs and the Ten in respect to what God is conveying here. Which in retrospect makes sense when one considers that the end of chapter one brings to our attention that we are begotten by the word of truth. In this we are new creature having the engrafted word. And so being we are not to forget what manner man we are having the engrafted word. And We are to be a doer of this word that is engrafted not a forgetful hearer only. For this engrafted word, this what we become is the perfect Law that is of Liberty. Not the Law when it is on parchment and Tables of Stone, for that perfected no one and subjected us unto bondage. but when God placed it, the word, the Law in our hearts and in our mouths that we do it. That is the word of faith in which we preach and gave us liberty. And that is in which we will be judged.
Jas 2:11 For he that said, Do not commit adultery, said also, Do not kill. Now if thou commit no adultery, yet if thou kill, thou art become a transgressor of the law.
Jas 2:12 So speak ye, and so do, as they that shall be judged by the law of liberty.
The Greatest Commandments are the Ten summarized, never deleting the details. The first 4 commandments are love to God, the last 6 love to our neighbor, magnified as demonstrated by Jesus Mat 5:19-30
His sermon does not stop there. In it he mentions laws throughout the Book of the law also. So I am not sure why you would post that.