The reading is from St. Paul's Letter to the Hebrews 9:8-23

Brethren, by this the Holy Spirit indicates that the way into the sanctuary is not yet opened as long as the outer tent is still standing (which is symbolic for the present age). According to this arrangement, gifts and sacrifices are offered which cannot perfect the conscience of the worshiper, but deal only with food and drink and various ablutions, regulations for the body imposed until the time of reformation. But when Christ appeared as a high priest of the good things that are to come, then through the greater and more perfect tent (not made with hands, that is, not of this creation) he entered once for all into the Holy Place, not through the blood of goats and calves but his own blood, thus securing an eternal redemption. For if the sprinkling of defiled persons with the blood of goats and bulls and with the ashes of a heifer sanctifies for the purification of the flesh, how much more shall the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify your conscience from dead works to serve the living God. Therefore he is the mediator of a new covenant, so that those who are called may receive the promised eternal inheritance, since a death has occurred which redeems them from the transgressions under the first covenant. For where a covenant is involved, the death of the one who made it must be established. For a covenant takes effect only at death, since it is not in force as long as the one who made it is alive. Hence even the first covenant was not ratified without blood. For when every commandment of the law had been declared by Moses to all the people, he took the blood of calves and goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people, saying, "This is the blood of the covenant which God commanded you." And in the same way he sprinkled with the blood both the tent and all the vessels used in worship. Indeed, under the law almost everything is purified with blood, and without the shedding of blood there is no forgiveness of sins. Thus it was necessary for the copies of the heavenly things to be purified with these rites, but the heavenly things themselves with better sacrifices than these.