'Law of the Lord' in the Bible

(just as it is written in the law of the Lord, "Every firstborn male will be set apart to the Lord"),

and to offer a sacrifice according to what is specified in the law of the Lord, a pair of doves or two young pigeons.

So when Joseph and Mary had performed everything according to the law of the Lord, they returned to Galilee, to their own town of Nazareth.