4For it is not possible that the blood of bulls and of goats should take away sins.Old testament sacrifices never forgave sins. Heb 10:4.
Notice it says " it is not possible.....to take away sins . Remission v redemption.
22And almost all things are by the law purged with blood; and without shedding of blood is no remission.
Hebrews 9 is talking about those animal sacrifices
Thats why John the baptist said , " behold the lamb of God who TAKES away the sin of the world . Remission v redemption.