1 Corinthians 7 14
For a husband who is not a Christian, the marriage relationship is made holy by the Christian wife, and for a wife who is not a Christian, the marriage relationship is made holy by the Christian husband. Otherwise it would mean your children were impure, but now they are holy.
Compare with other 3 random translations
ERV 1 Corinthians 7:14The husband who is not a believer is set apart for God through his believing wife. And the wife who is not a believer is set apart for God through her believing husband. If this were not true, your children would be unfit for God’s use. But now they are set apart for him.
NLT 1 Corinthians 7:14For the believing wife brings holiness to her marriage, and the believing husband brings holiness to his marriage. Otherwise, your children would not be holy, but now they are holy.
NIV 1 Corinthians 7:14For the unbelieving husband has been sanctified through his wife, and the unbelieving wife has been sanctified through her believing husband. Otherwise your children would be unclean, but as it is, they are holy.