Overview
Some Christian local churches and churches at large may forbid interfaith marriage, basing this ban on New Testament verse 2 Corinthians 6:14 and, in some cases, the Old Testament verse Deuteronomy 7:3 (see also Ezra 9–10.). Likewise, such marriages are indirectly supported by part of the Pauline privilege, in 1 Corinthians 7:12–14, with the central excerpt: "For the unbelieving husband is sanctified through his (believing) wife, and the unbelieving wife is sanctified through her believing husband." However, it is to be noted that the context of 2 Corinthians 6:14 is not directly concerned with the question of marriage itself, and that verses 1 Corinthians 7:12–14 are stipulations about divorce rather than marriage. Further, Deuteronomy 7:3 was with respect to Jewish law.
The New Testament does not otherwise broach the topic. Over time, this has effectively left the matter to be specified by the various denominations themselves or be based on local customs or attitudes of the day. Of the Christian denominations, the Roman Catholic Church has the best-defined set of criteria on interfaith marriage recognition. The Eastern Orthodox have rules which are in most respects similar to the Catholics.
Read more about this topic: Interfaith Marriage In Christianity