Hebrews 9:16-28

For where there is a will and testament involved, the death of the one who made it must be established, for a will and testament takes effect [only] at death, since it is never in force as long as the one who made it is alive. So even the first covenant was not put in force without [the shedding of] blood. For when every commandment in the Law had been read by Moses to all the people, he took the blood of the calves and goats [which had been sacrificed], together with water and scarlet wool and with a bunch of hyssop, and he sprinkled both the scroll itself and all the people, saying, “THIS IS THE BLOOD OF THE COVENANT [that seals and ratifies the agreement] WHICH GOD ORDAINED and COMMANDED [me to deliver to] YOU.” [Ex 24:6-8] And in the same way he sprinkled both the tabernacle and all the containers and sacred utensils of worship with the blood. In fact under the Law almost everything is cleansed with blood, and without the shedding of blood there is no forgiveness [neither release from sin and its guilt, nor cancellation of the merited punishment]. Therefore it was necessary for the [earthly] copies of the heavenly things to be cleansed with these, but the heavenly things themselves required far better sacrifices than these. For Christ did not enter into a holy place made with hands, a mere copy of the true one, but [He entered] into heaven itself, now to appear in the very presence of God on our behalf; nor did He [enter into the heavenly sanctuary to] offer Himself again and again, as the high priest enters the Holy Place every year with blood that is not his own. Otherwise, He would have needed to suffer over and over since the foundation of the world; but now once for all at the consummation of the ages He has appeared and been publicly manifested to put away sin by the sacrifice of Himself. And just as it is appointed and destined for all men to die once and after this [comes certain] judgment, so Christ, having been offered once and once for all to bear [as a burden] the sins of many, will appear a second time [when he returns to earth], not to deal with sin, but to bring salvation to those who are eagerly and confidently waiting for Him.