Numbers 19:9

Now a man who is clean shall gather up the ashes of the heifer and deposit them outside the camp in a clean place, and the congregation of the sons of Israel shall keep it as water to remove impurity; it is purification from sin.

Numbers 19:13

Anyone who touches a corpse, the body of a man who has died, and does not purify himself, defiles the tabernacle of the Lord; and that person shall be cut off from Israel. Because the water for impurity was not sprinkled on him, he shall be unclean; his uncleanness is still on him.

Hebrews 9:13

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

Numbers 19:20-21

‘But the man who is unclean and does not purify himself from uncleanness, that person shall be cut off from the midst of the assembly, because he has defiled the sanctuary of the Lord; the water for impurity has not been sprinkled on him, he is unclean.

Leviticus 15:20

Everything also on which she lies during her menstrual impurity shall be unclean, and everything on which she sits shall be unclean.

Numbers 6:12

and shall dedicate to the Lord his days as a Nazirite, and shall bring a male lamb a year old for a guilt offering; but the former days will be void because his separation was defiled.

Numbers 8:7

Thus you shall do to them, for their cleansing: sprinkle purifying water on them, and let them use a razor over their whole body and wash their clothes, and they will be clean.

Numbers 9:13

But the man who is clean and is not on a journey, and yet neglects to observe the Passover, that person shall then be cut off from his people, for he did not present the offering of the Lord at its appointed time. That man will bear his sin.

Numbers 19:18

A clean person shall take hyssop and dip it in the water, and sprinkle it on the tent and on all the furnishings and on the persons who were there, and on the one who touched the bone or the one slain or the one dying naturally or the grave.

Numbers 31:23-24

everything that can stand the fire, you shall pass through the fire, and it shall be clean, but it shall be purified with water for impurity. But whatever cannot stand the fire you shall pass through the water.

Zechariah 13:1

“In that day a fountain will be opened for the house of David and for the inhabitants of Jerusalem, for sin and for impurity.

2 Corinthians 5:21

He made Him who knew no sin to be sin on our behalf, so that we might become the righteousness of God in Him.

2 Corinthians 7:1

Therefore, having these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.

Hebrews 7:26

For it was fitting for us to have such a high priest, holy, innocent, undefiled, separated from sinners and exalted above the heavens;

Treasury of Scripture Knowledge

Summary

And a man that is clean shall gather up the ashes of the heifer, and lay them up without the camp in a clean place, and it shall be kept for the congregation of the children of Israel for a water of separation: it is a purification for sin.

Lay them up

General references

Bible References

Clean

Numbers 19:18
A clean person shall take hyssop and dip it in the water, and sprinkle it on the tent and on all the furnishings and on the persons who were there, and on the one who touched the bone or the one slain or the one dying naturally or the grave.
Numbers 9:13
But the man who is clean and is not on a journey, and yet neglects to observe the Passover, that person shall then be cut off from his people, for he did not present the offering of the Lord at its appointed time. That man will bear his sin.
2 Corinthians 5:21
He made Him who knew no sin to be sin on our behalf, so that we might become the righteousness of God in Him.
Hebrews 7:26
For it was fitting for us to have such a high priest, holy, innocent, undefiled, separated from sinners and exalted above the heavens;
Hebrews 9:13
For if the blood of goats and bulls and the ashes of a heifer sprinkling those who have been defiled sanctify for the cleansing of the flesh,

Lay them up

Numbers 19:17
Then for the unclean person they shall take some of the ashes of the burnt purification from sin and flowing water shall be added to them in a vessel.

A water of separation

Leviticus 15:20
Everything also on which she lies during her menstrual impurity shall be unclean, and everything on which she sits shall be unclean.
Zechariah 13:1
“In that day a fountain will be opened for the house of David and for the inhabitants of Jerusalem, for sin and for impurity.
2 Corinthians 7:1
Therefore, having these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.

General references

Leviticus 22:6
a person who touches any such shall be unclean until evening, and shall not eat of the holy gifts unless he has bathed his body in water.
Numbers 19:18
A clean person shall take hyssop and dip it in the water, and sprinkle it on the tent and on all the furnishings and on the persons who were there, and on the one who touched the bone or the one slain or the one dying naturally or the grave.