God’s Commands Are Plain—The Lord commanded ancient Israel not to intermarry with the idolatrous nations around them: “Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.” The reason is given. Infinite Wisdom, foreseeing the result of such unions, declares: “For they will turn away thy son from following Me, that they may serve other gods: so will the anger of the Lord be kindled against you, and destroy thee suddenly.” “For thou art an holy people unto the Lord thy God: the Lord thy God hath chosen thee to be a special people unto Himself, above all people that are upon the face of the earth.” ... {AH 61.3}

In the New Testament are similar prohibitions concerning the marriage of Christians with the ungodly. The Apostle Paul, in his first letter to the Corinthians, declares: “The wife is bound by the law as long as her husband liveth; but if her husband be dead, she is at liberty to be married to whom she will; only in the Lord.” Again, in his second epistle, he writes: “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, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be My sons and daughters, saith the Lord Almighty.”2 {AH 62.1}

The curse of God rests upon many of the ill-timed, inappropriate connections that are formed in this age of the world. If the Bible left these questions in a vague, uncertain light, then the course that many youth of today are pursuing in their attachments for one another would be more excusable. But the requirements of the Bible are not halfway injunctions; they demand perfect purity of thought, of word, and of deed. We are grateful to God that His word is a light to the feet, and that none need mistake the path of duty. The young should make it a business to consult its pages and heed its counsels, for sad mistakes are always made in departing from its precepts.3 {AH 62.2}