What He was expressing, is that all the laws have one of two purposes:
1. Loving God
2. Loving others
The law explains specific ways in which we are commanded to love our neighbor, and love God. Not eating pork is a way in which we love God (Leviticus 11:8), while putting a railing around the balcony of our house is a way in which we love our brother (Deuteronomy 22:8).
Most christians seem to think that loving God consists of having fuzzy feelings for Him. Which is just a delusion that has no basis in scripture. We love God by keeping His commands.
John 14:15 If ye love me, keep my commandments
John 14:24 He that loveth me not keepeth not my sayings: and the word which ye hear is not mine, but the Father's which sent me.
There is no covenant apart from Israel.
Jeremiah 31:31 Behold, the days come, saith YHVH, that I will make a new covenant with the house of Israel, and with the house of Judah:
As a gentile, you are given the opportunity to be grafted into Israel. At which time, you are subject to the commands given to Israel by the vine (the Messiah).