2 Corinthians 6:14

Be not unequally yoked with unbelievers; for what participation has righteousness with wickedness? or what communion has light with darkness?

1 Corinthians 7:14

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

Treasury of Scripture Knowledge

Summary

For they have taken of their daughters for themselves, and for their sons: so that the holy seed have mingled themselves with the people of those lands: yea, the hand of the princes and rulers hath been chief in this trespass.

The holy seed

Bible References

The holy seed

1 Corinthians 7:14
For the unbelieving husband is sanctified by the believing wife, and the unbelieving wife is sanctified by the brother; else were your children impure, but now are they holy.

Mingled

2 Corinthians 6:14
Be not unequally yoked with unbelievers; for what participation has righteousness with wickedness? or what communion has light with darkness?