'According to the Law' in the Bible

And those of the sons of Levi, who receive the office of priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:

who is made, not according to the law of a fleshly commandment, but according to the power of an endless life; for he testifies,

For if he were on earth, he could not be a priest; because there are priests that offer gifts according to the law:

And, indeed, according to the law, almost all things are cleansed by blood; and without the shedding of blood there is no remission.

After saying above, Thou didst neither desire, nor take pleasure in sacrifice and offering and whole burnt-offerings and offerings for sin, which are offered according to the law,