Hebrews 9:20-21

9:20 and said, “This is the blood of the covenant that God has commanded you to keep.” 9:21 And both the tabernacle and all the utensils of worship he likewise sprinkled with blood.

Hebrews 10:4

10:4 For the blood of bulls and goats cannot take away sins.

Hebrews 13:12

13:12 Therefore, to sanctify the people by his own blood, Jesus also suffered outside the camp.