1 Corinthians 7:14

For the unbelieving husband is sanctified [that is, he receives the blessings granted] through his [Christian] wife, and the unbelieving wife is sanctified through her believing husband. Otherwise your children would be [ceremonially] unclean, but as it is they are holy.

Ezra 9:1-2

When these things were completed, the officials came to me and said, “The people of Israel and the priests and Levites have not separated themselves from the peoples of the lands, but have committed the repulsive acts of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites.

Isaiah 52:1

Awake, awake,
Put on your strength, O Zion;
Put on your beautiful garments,
O Jerusalem, the holy city;
For the uncircumcised and the unclean
Will no longer come into you.

Malachi 2:15-16

But not one has done so who has a remnant of the Spirit. And what did that one do while seeking a godly offspring? Take heed then to your spirit, and let no one deal treacherously against the wife of your youth.

Acts 10:23

So Peter invited them in and gave them lodging [for the night].

The next day Peter got up and left with them, and some of the brothers from Joppa went with him.

Romans 11:16

If the first portion [of dough offered as the first fruits] is holy, so is the whole batch; and if the root (Abraham, the patriarchs) is holy, so are the branches (the Israelites).

1 Corinthians 6:15-17

Do you not know that your bodies are members of Christ? Am I therefore to take the members of Christ and make them part of a prostitute? Certainly not!

1 Timothy 4:5

for it is sanctified [set apart, dedicated to God] by means of the word of God and prayer.

Titus 1:15

To the pure, all things are pure; but to the corrupt and unbelieving, nothing is pure; both their mind and their conscience are corrupted.

Treasury of Scripture Knowledge

Summary

For the unbelieving husband is sanctified by the wife, and the unbelieving wife is sanctified by the husband: else were your children unclean; but now are they holy.

General references

Bible References

The unbelieving husband

1 Corinthians 6:15
Do you not know that your bodies are members of Christ? Am I therefore to take the members of Christ and make them part of a prostitute? Certainly not!
Ezra 9:1
When these things were completed, the officials came to me and said, “The people of Israel and the priests and Levites have not separated themselves from the peoples of the lands, but have committed the repulsive acts of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites.
1 Timothy 4:5
for it is sanctified [set apart, dedicated to God] by means of the word of God and prayer.
Titus 1:15
To the pure, all things are pure; but to the corrupt and unbelieving, nothing is pure; both their mind and their conscience are corrupted.

Else

Ezra 9:2
For they have taken some of their daughters as wives for themselves and for their sons, so that the holy race has intermingled with the peoples of the lands. Indeed, the officials and chief men have been foremost in this unfaithful act and direct violation [of God’s will].”
Isaiah 52:1
Awake, awake,
Put on your strength, O Zion;
Put on your beautiful garments,
O Jerusalem, the holy city;
For the uncircumcised and the unclean
Will no longer come into you.
Malachi 2:15
But not one has done so who has a remnant of the Spirit. And what did that one do while seeking a godly offspring? Take heed then to your spirit, and let no one deal treacherously against the wife of your youth.
Acts 10:23
So Peter invited them in and gave them lodging [for the night].

The next day Peter got up and left with them, and some of the brothers from Joppa went with him.
Romans 11:16
If the first portion [of dough offered as the first fruits] is holy, so is the whole batch; and if the root (Abraham, the patriarchs) is holy, so are the branches (the Israelites).

General references

Matthew 19:15
After placing His hands on them [for a blessing], He went on from there.
1 Corinthians 11:11
Nevertheless, woman is not independent of man, nor is man independent of woman.