8 Bible Verses about Marriages, Believers With Unbelievers

Set yourselves therefore at large, and bear not a stranger's yoke with the unbelievers. For what fellowship hath righteousness with unrighteousness? What company hath light with darkness? What concord hath Christ with Belial? Either, what part hath he that believeth with an infidel? How agreeth the temple of God with images? And ye are the temple of the living God, as said God, "I will dwell among them, and walk among them, and will be their God: and they shall be my people."

May twain walk together except they be agreed among themselves?

Be not deceived: malicious speakings corrupt good manners.

We know that we be of God, and that the world is altogether set on mischief.

And it came to pass, when men began to multiply upon the earth and had begot them daughters, the sons of God saw the daughters of men that they were fair, and took unto them wives, which they best liked among them all. And the LORD said, "My spirit shall not always strive with man, for they are flesh. Nevertheless I will give them yet space, a hundred and twenty years."read more.
There were tyrants in the world in those days. For after that the children of God had gone in unto the daughters of men and had begotten them children, the same children were the mightiest of the world and men of renown.

Either, remember ye not, that your bodies are the members of Christ? Shall I now take the members of Christ, and make them the members of a harlot? God forbid. Do ye not understand that he which coupleth himself with a harlot, is become one body? "For two," saith he, "shall be one flesh." but he that is joined unto the Lord is one spirit.read more.
Flee fornication. All sins that a man doth, are without the body. But he that is a fornicator, sinneth against his own body. Either, know ye not how that your bodies are the temple of the holy ghost, which is in you, whom he have of God, and how that ye are not your own? For ye are dearly bought. Therefore glorify ye God in your bodies and in your spirits, for they are God's.

confess now therefore unto the LORD God of your fathers, and do his pleasure, and separate yourselves from the people of the land, and from the strange wives."

When the LORD thy God hath brought thee into the land whither thou goest to possess it, and hath cast out many nations before thee: the Hittites, the Girgashites, the Amorites, the Canaanites, the Perezites, the Hivites and the Jebusites; seven nations more in number and mightier than thou: and when the LORD thy God hath set them before thee that thou shouldest smite them: see that thou utterly destroy them and make no covenant with them nor have compassion on them. Also thou shalt make no marriages with them, neither give thy daughter unto his son nor take his daughter unto thy son.read more.
For they will make your sons depart from me and serve strange gods, and then will the wrath of the LORD wax hot upon you and destroy you shortly.