8 Bible Verses about Marriages, Believers With Unbelievers

Be ye not unequally yoked together with unbelievers, for what fellowship does righteousness have with unrighteousness? and what communion does light have with darkness? And what concord does Christ have with Belial? or what part do the faithful have with the unfaithful? And what agreement does the temple of God have with idols? for ye are the temple of the living God; as God has said, I will dwell in them and walk in them and I will be their God, and they shall be my people.

Can two walk together except they be agreed?

Be not deceived: evil companions corrupt good character.

And we know that we are of God, and the whole world lies in wickedness.

And it came to pass, when men began to multiply on the face of the earth and daughters were born unto them, that the sons of God saw that the daughters of men were fair, and they took for themselves wives of all whom they chose. And the LORD said, My spirit shall not always strive with man, for certainly he is flesh; yet his days shall be one hundred and twenty years.read more.
There were giants in the earth in those days, and also after that, when the sons of God came in unto the daughters of men, and they bore sons to them, the same became mighty men who were of old, men of renown.

Know ye not that your bodies are the members of Christ? Shall I then take the members of Christ and make them the members of a harlot? In no wise. What? know ye not that he who is joined to the harlot is one body with her? For they shall be, saith he, two in one flesh. But he that is joined unto the Lord is one spirit.read more.
Flee fornication. Any other sin that a man does is outside the body, but he that commits fornication sins against his own body. What? know ye not that your body is the temple of the Holy Spirit who is in you, whom ye have of God, and that ye are not your own? For ye are bought with a price, therefore glorify God in your body and in your spirit, which are God's.

Now, therefore, make confession unto the LORD God of your fathers and do his will; and separate yourselves from the peoples of the lands and from the strange women.

When the LORD thy God shall bring thee into the land into which thou must enter to inherit it and has cast out many Gentiles before thee, the Hittite and the Girgashite and the Amorite and the Canaanite and the Perizzite and the Hivite and the Jebusite, seven nations greater and mightier than thou; and when the LORD thy God shall deliver them before thee, thou shalt smite them and utterly destroy them; thou shalt make no covenant with them nor show mercy unto 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.read more.
For they will turn away thy son from following me that they may serve other gods; and the anger of the LORD will be kindled upon you and destroy thee suddenly.