The law of Christ is this: “Bear one another’s burdens, and so fulfill the law of Christ,” Galatians 6:2.
“And now I plead with you, lady, not as though I wrote a new commandment to you, but that which we have had from the beginning: that we love one another,” 2nd John 1:5. Jesus our Lord clarified by summing up the totality of the OT Law and Prophets in this: “The first of all commandments is this: Hear, O Israel, the Lord our God, the Lord is one. And you shall love the Lord your God with all your heart, with all your soul, with all your mind, and with all your strength. This is the first commandment. And the second, like it, is this: You shall love your neighbor as yourself,” Mark 12:29-31.