1 Corinthians 7:2
Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband.
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Mark 10:8
And they two shall be one flesh: so then they are no more two, but one flesh.
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Deuteronomy 17:17
Neither shall he multiply wives to himself, that his heart turn not away: neither shall he greatly multiply to himself silver and gold.
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1 Timothy 3:2
A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behavior, given to hospitality, apt to teach;
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