Mark 12:31

And the second is like, namely this, Thou shalt love thy neighbor as thyself. There is none other commandment greater than these.

It was not a mere harmless question or request for information which this scribe here uttered. He was rather one of the sharp-witted ones of the Pharisees, whose object was to tempt Christ and lead Him to make a statement which would in some way compromise Him. But it spoke in this man's favor that he realized and was conscious that Jesus answered them well. Approaching, therefore, he put his question as to which was the first of all commandments. If Christ had singled out a separate precept, He might have been charged with unwarranted emphasis upon some individual form to the exclusion of the rest. Thus the Pharisees laid the greatest stress upon the law of circumcision, the keeping of the Sabbath, the proper width of the fringes of the mantles, the correct size of the phylacteries, etc. By giving the summary of the entire Moral Law, in all its various branches, in all its various precepts, Jesus intercepted and warded off any accusation regarding any disregard, on His part, of the sanctity of the Law. He places first of all the Shem a of the Jews, Deuteronomy 6:4. The fulfillment of the entire Law flows from love of God, which, in turn, is the fruit, the outgrowth of faith. The one Lord, who has revealed Himself in three persons, is the only Lord in earth and heaven; He requires the whole, undivided service and worship of the man that trusts in Him. With heart, soul, mind, and strength every believer should love Him, that is, to the uttermost degree, with every ounce of everything that is within, throwing all into the scales for the Lord and His service. And to this must be added the second great commandment: Thou shalt love thy neighbor as thyself. The love toward one's neighbor flows from the love toward God. He that truly loves God will also love his neighbor. Therefore love is the fulfillment of the entire Law, and all commandments can be summarized in that one word, love, Romans 13:10. Beyond this, higher than this, there is no commandment; this represents the pinnacle of accomplishment in fulfilling the Law.