'Piety' in the Bible

Is not your piety your confidence, and your blameless ways your hope?

But you even break off piety, and hinder meditation before God.

Is it because of your piety that he rebukes you and goes to judgment with you?

When Peter saw this, he declared to the people, "Men of Israel, why are you amazed at this? Why do you stare at us as if we had made this man walk by our own power or piety?