'Under the Law' in the Bible

But we know that whatever things the Law says, it says to those who are under the Law; so that every mouth may be stopped and all the world may be under judgment before God,

And to the Jews I became as a Jew, so that I might gain the Jews. To those who are under the Law, I became as under the Law, so that I might gain those who are under the Law.

To those who are outside Law, I became as outside Law (not being outside law to God, but under the Law to Christ), so that I might gain those who are outside Law.