Hebrews 9:21

17 because a will does not take effect until the one who made it has died; it cannot be executed while he is still alive.

18 That is why even the first covenant was not put into effect without blood.

19 For when Moses had proclaimed every commandment of the law to all the people, he took the blood of calves and goats, along with water, scarlet wool, and hyssop, and sprinkled the scroll and all the people,

20 saying, “This is the blood of the covenant, which God has commanded you to keep.”

21 In the same way, he sprinkled with blood the tabernacle and all the vessels used in worship.

22 According to the law, in fact, nearly everything must be purified with blood, and without the shedding of blood there is no forgiveness.

23 So it was necessary for the copies of the heavenly things to be purified with these sacrifices, but the heavenly things themselves with better sacrifices than these.

24 For Christ did not enter a man-made copy of the true sanctuary, but He entered heaven itself, now to appear on our behalf in the presence of God.

25 Nor did He enter heaven to offer Himself again and again, as the high priest enters the Most Holy Place every year with blood that is not his own.

Read all of Hebrews 9