For the unbelieving husband is sanctified through his wife, and the unbelieving wife is sanctified through her believing husband; for otherwise your children are unclean, but now they are holy.
Strong's Concordance
Original word: τούτῳ
Transliteration: toutó
Definition (short): this
Definition (full): this; he, she, it
NAS Exhaustive Concordance
Word Origin: dat. sing. masc. or neut. of houtos,, q.v.
Dative case singular masculine or neuter of houtos; to (in, with or by) this (person or thing) -- here(-by, -in), him, one, the same, there(-in), this.