"Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? And what concord hath Christ with Belial? Or what part hath he that believeth with an infidel? And what agreement hath the temple of God with idols? For ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people. Wherefore come out from among them, and be ye separate, says the Lord, and touch not the unclean thing; and I will receive, and will be a Father unto you, and ye shall be my sons and daughters, says the Lord Almighty" (II Cor. 6:14-18).
This is troubling for me, since I don't want to have children, and the odds of me finding a Christian woman who also doesn't want kids is presumably slim.