Hebrews 10:3

But those sacrifices were [only] a reminder of [the people's] sins year after year,

Hebrews 9:7

But [only] once a year the head priest goes alone into the inner room [i.e., Holy of Holies], and never without [animal] blood, which he offers [as a sacrifice] for himself and for the sins done in ignorance by the people.

Matthew 26:28

for this is [i.e., represents] my blood of the Agreement [i.e., between God and mankind], which is [to be] poured out for many people in order for [their] sins to be forgiven.

Treasury of Scripture Knowledge

Summary

But in those sacrifices there is a remembrance again made of sins every year.

A remembrance

Bible References

A remembrance

Hebrews 9:7
But [only] once a year the head priest goes alone into the inner room [i.e., Holy of Holies], and never without [animal] blood, which he offers [as a sacrifice] for himself and for the sins done in ignorance by the people.
Matthew 26:28
for this is [i.e., represents] my blood of the Agreement [i.e., between God and mankind], which is [to be] poured out for many people in order for [their] sins to be forgiven.