Hebrews 7:19

for the Law perfected nothing,and on the other, the bringing in of a better hope, by which we draw near to God.

Hebrews 9:10

being only ordinances pertaining to the flesh, which in addition to meats and drinks and divers washings are imposed until the time of reformation.

Hebrews 9:13-14

For if the blood of goats and bulls, and the ashes of a heifer sprinkling those who have been defiled, sanctify to the purifying of the flesh,

Hebrews 10:4

For it is impossible that the blood of bulls and goats should take away sins.

Treasury of Scripture Knowledge

Summary

And it shall be a perpetual statute unto them, that he that sprinkleth the water of separation shall wash his clothes; and he that toucheth the water of separation shall be unclean until even.

Bible References

General references

Hebrews 7:19
for the Law perfected nothing,and on the other, the bringing in of a better hope, by which we draw near to God.
Hebrews 9:10
being only ordinances pertaining to the flesh, which in addition to meats and drinks and divers washings are imposed until the time of reformation.
Hebrews 10:4
For it is impossible that the blood of bulls and goats should take away sins.