8 Bible Verses about Marriages, Believers With Unbelievers

Do not keep company with those who have not faith: for what is there in common between righteousness and evil, or between light and dark? And what agreement is there between Christ and the Evil One? or what part has one who has faith with one who has not? And what agreement has the house of God with images? for we are a house of the living God; even as God has said, I will be living among them, and walking with them; and I will be their God, and they will be my people.

Is it possible for two to go walking together, if not by agreement?

Do not be tricked by false words: evil company does damage to good behaviour.

We are certain that we are of God, but all the world is in the power of the Evil One.

And after a time, when men were increasing on the earth, and had daughters, The sons of God saw that the daughters of men were fair; and they took wives for themselves from those who were pleasing to them. And the Lord said, My spirit will not be in man for ever, for he is only flesh; so the days of his life will be a hundred and twenty years.read more.
There were men of great strength and size on the earth in those days; and after that, when the sons of God had connection with the daughters of men, they gave birth to children: these were the great men of old days, the men of great name.

Do you not see that your bodies are part of the body of Christ? how then may I take what is a part of the body of Christ and make it a part of the body of a loose woman? such a thing may not be. Or do you not see that he who is joined to a loose woman is one body with her? for God has said, The two of them will become one flesh. But he who is united to the Lord is one spirit.read more.
Keep away from the desires of the flesh. Every sin which a man does is outside of the body; but he who goes after the desires of the flesh does evil to his body. Or are you not conscious that your body is a house for the Holy Spirit which is in you, and which has been given to you by God? and you are not the owners of yourselves; For a payment has been made for you: let God be honoured in your body.

So now, give praise to the Lord, the God of your fathers, and do his pleasure; and make yourselves separate from the peoples of the land and from the strange women.

When the Lord your God takes you into the land where you are going, which is to be your heritage, and has sent out the nations before you, the Hittites and the Girgashites and the Amorites and the Canaanites and the Perizzites and the Hivites and the Jebusites, seven nations greater and stronger than you; And when the Lord has given them up into your hands and you have overcome them, give them up to complete destruction: make no agreement with them, and have no mercy on them: Do not take wives or husbands from among them; do not give your daughters to their sons, or take their daughters for your sons.read more.
For through them your sons will be turned from me to the worship of other gods: and the Lord will be moved to wrath against you and send destruction on you quickly.