'Rule' in the Bible

And when Peter came to Jerusalem, those who kept the rule of circumcision had an argument with him,

Now certain men came down from Judaea, teaching the brothers and saying that without circumcision, after the rule of Moses, there is no salvation.

Go with these, and make yourself clean with them, and make the necessary payments for them, so that they may be free from their oath: and everyone will see that the statements made about you are not true, but that you put yourself under rule, and keep the law.

So Festus, having come into that part of the country which was under his rule, after three days went up to Jerusalem from Caesarea.