'According to the Law' in the Bible

and the lampstands of pure gold with their lamps, so that they should burn according to the Law before the holy place;

And they stood in their place in their manner, according to the Law of Moses the man of God. The priests sprinkled the blood from the hand of the Levites.

And they roasted the passover lamb with fire according to the Law. But the holy offerings they boiled in pots, and in kettles, and in pans, and carried to all the sons of the people.