Ephesians 5:26-27

To make her holy, after purifying her by the Washing with the Water, according to his promise;

Hebrews 9:13-14

For, if the blood of goats and bulls, and the sprinkling of the ashes of a heifer, purify those who have been defiled (as far as ceremonial purification goes),

1 John 1:7

But, if our lives are lived in the Light, as God himself is in the Light, we have communion with one another, and the Blood of Jesus, his Son, purifies us from all sin.

1 John 1:9

If we confess our sins, God may be trusted, in his righteousness, to forgive us our sins and purify us from all wickedness.

Revelation 21:3-4

And I heard a loud voice from the throne, which said-- 'See! the Tabernacle of God is set up among men. God will dwell among them, and they will be his Peoples, and God himself will be among them,

Revelation 21:7

He who conquers shall enter into possession of these things, and I will be his God, and he shall be my 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
To make her holy, after purifying her by the Washing with the Water, according to his promise;
Hebrews 9:13
For, if the blood of goats and bulls, and the sprinkling of the ashes of a heifer, purify those who have been defiled (as far as ceremonial purification goes),
1 John 1:7
But, if our lives are lived in the Light, as God himself is in the Light, we have communion with one another, and the Blood of Jesus, his Son, purifies us from all sin.

They be

Revelation 21:3
And I heard a loud voice from the throne, which said-- 'See! the Tabernacle of God is set up among men. God will dwell among them, and they will be his Peoples, and God himself will be among them,