Numbers 19:21

" 'It will be an eternal decree for them. The one who spatters the waters of impurity will wash his garments, and the one who touches the waters of impurity will be unclean until the evening.

Leviticus 11:25

and anyone who carries their dead body must wash his garments, and he shall be unclean until the evening.

Leviticus 11:40

And the one who eats {some of} its dead body must wash his garments, and he shall be unclean until the evening; and the one who carries its dead body must wash his garments, and he shall be unclean until the evening.

Leviticus 16:26-28

"And the person who sends out the goat for Azazel shall wash his garments, and he shall wash his body with water, and {afterward} he shall come to the camp.

Hebrews 7:19

(for the law [made] nothing perfect), but on the other hand [there is] the introduction of a better hope through which we draw near to God.

Hebrews 9:10

concerning [instead] only food and drink and different washings, regulations of outward things imposed until the time of setting [things] right.

Hebrews 9:13-14

For if the blood of goats and bulls and the ashes of a young cow sprinkled on those who are defiled sanctify [them] for the ritual purity of the flesh,

Hebrews 10:4

For [it is] impossible [for] the blood of bulls and goats to 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

Leviticus 11:25
and anyone who carries their dead body must wash his garments, and he shall be unclean until the evening.
Leviticus 16:26
"And the person who sends out the goat for Azazel shall wash his garments, and he shall wash his body with water, and {afterward} he shall come to the camp.
Hebrews 7:19
(for the law [made] nothing perfect), but on the other hand [there is] the introduction of a better hope through which we draw near to God.
Hebrews 9:10
concerning [instead] only food and drink and different washings, regulations of outward things imposed until the time of setting [things] right.
Hebrews 10:4
For [it is] impossible [for] the blood of bulls and goats to take away sins.