'Rules' in the Bible

And the Pharisees and the scribes put the question to him, Why do your disciples not keep the rules of the fathers, but take their bread with unwashed hands?

But their worship is to no purpose, while they give as their teaching the rules of men.

For, turning away from the law of God, you keep the rules of men.

And he said to them, Truly you put on one side the law of God, so that you may keep the rules which have been handed down to you.