In Galatians 6:2 and 1 Corinthians 9:21, Paul refers to the Law of Christ and says that he is under it (by which I assume all Christians are under it). Unfortunately, Paul is rather vague as to what this law is. So, what do you think he means when he talks about the Law of Christ?
(Gal 6:2 ESV) Bear one another's burdens, and so fulfill the law of Christ.
(1Co 9:20 ESV) To the Jews I became as a Jew, in order to win Jews. To those under the law I became as one under the law (though not being myself under the law) that I might win those under the law.
(1Co 9:21 ESV) To those outside the law I became as one outside the law (not being outside the law of God but under the law of Christ) that I might win those outside the law.
(Gal 6:2 ESV) Bear one another's burdens, and so fulfill the law of Christ.
(1Co 9:20 ESV) To the Jews I became as a Jew, in order to win Jews. To those under the law I became as one under the law (though not being myself under the law) that I might win those under the law.
(1Co 9:21 ESV) To those outside the law I became as one outside the law (not being outside the law of God but under the law of Christ) that I might win those outside the law.