1 Corinthians 4:14; 1 Corinthians 4:17; 1 Corinthians 7:14

14 I write not these things to shame you, but as my beloved sons I warn you.
17 For this cause have I sent unto you Timotheus, who is my beloved son, and faithful in the Lord, who shall bring you into remembrance of my ways which be in Christ, as I teach every where in every church.
14 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.