Hebrews 10:8

Saying above, Sacrifices and offerings and whole burnt offerings and sacrifices for sin thou wouldest not, neither hadst pleasure therein (they which are offered according to the law).

Here the author quotes the sense of the quotation from Psalms 40:6-8, and for notes on these words see under Hebrews 10:5-7. As is sometimes true in the Scriptures, what is written as a parenthesis turns out to be of surpassing importance, as for example, the epic parenthesis of John 10:35, "And the Scriptures cannot be broken." So it is here. The parenthetical statement is for the purpose of alerting the reader to the fact that it is not merely some special kind of sacrifice, nor all of them together, which falls under the abrogation about to be mentioned; but rather it is the law itself, the whole and entire law, which was but a shadow anyway, that must fall under the sweeping annulment of Christ who repealed the whole ancient constitution in order to found another.