'Law of the Lord' in the Bible

as it hath been written in the Law of the Lord, -- 'Every male opening a womb shall be called holy to the Lord,'

and to give a sacrifice, according to that said in the Law of the Lord, 'A pair of turtle-doves, or two young pigeons.'

And when they finished all things, according to the Law of the Lord, they turned back to Galilee, to their city Nazareth;