Ephesians 5:26-27

in order that he might sanctify her, having purified her by the washing of water through the word,

Hebrews 9:13-14

For if the blood of goats and bulls, and the ashes of a heifer sprinkling those who have been defiled, sanctifies unto the purification of the flesh;

1 John 1:7

but if we walk in the light, as He is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.

1 John 1:9

If we confess our sins, he is faithful and righteous that he may forgive us our sins, and cleanse us from all unrighteousness.

Revelation 21:3-4

And I heard a great voice speaking from the throne, Behold, the tabernacle of God is with the people, and he will tabernacle with them, and they will be his people, and God himself will be with them:

Revelation 21:7

The one conquering shall inherit all things; and I will be to him God, and he shall be to me a son.

Treasury of Scripture Knowledge

Summary

Neither shall they defile themselves any more with their idols, nor with their detestable things, nor with any of their transgressions: but I will save them out of all their dwellingplaces, wherein they have sinned, and will cleanse them: so shall they be my people, and I will be their God.

They be

Bible References

Will cleanse

Ephesians 5:26
in order that he might sanctify her, having purified her by the washing of water through the word,
Hebrews 9:13
For if the blood of goats and bulls, and the ashes of a heifer sprinkling those who have been defiled, sanctifies unto the purification of the flesh;
1 John 1:7
but if we walk in the light, as He is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.

They be

Revelation 21:3
And I heard a great voice speaking from the throne, Behold, the tabernacle of God is with the people, and he will tabernacle with them, and they will be his people, and God himself will be with them: