1 Corinthians 7:39

A wife is bound for so long time as her husband liveth; but if the husband be dead, she is free to be married to whom she will; only in the Lord.

Romans 7:2-3

For the woman that hath a husband is bound by law to the husband while he liveth; but if the husband die, she is discharged from the law of the husband.

1 Corinthians 7:15

Yet if the unbelieving departeth, let him depart: the brother or the sister is not under bondage in such cases : but God hath called us in peace.

Genesis 6:2

that the sons of God saw the daughters of men that they were fair; and they took them wives of all that they chose.

Deuteronomy 7:3-4

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.

Malachi 2:11

Judah hath dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah hath profaned the holiness of Jehovah which he loveth, and hath married the daughter of a foreign god.

1 Corinthians 7:10

But unto the married I give charge, yea not I, but the Lord, That the wife depart not from her husband

2 Corinthians 6:14-16

Be not unequally yoked with unbelievers: for what fellowship have righteousness and iniquity? or what communion hath light with darkness?

Treasury of Scripture Knowledge

Summary

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.

General references

Bible References

Wife

1 Corinthians 7:10
But unto the married I give charge, yea not I, but the Lord, That the wife depart not from her husband
Romans 7:2
For the woman that hath a husband is bound by law to the husband while he liveth; but if the husband die, she is discharged from the law of the husband.

Only

Genesis 6:2
that the sons of God saw the daughters of men that they were fair; and they took them wives of all that they chose.
Deuteronomy 7:3
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.
Malachi 2:11
Judah hath dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah hath profaned the holiness of Jehovah which he loveth, and hath married the daughter of a foreign god.
2 Corinthians 6:14
Be not unequally yoked with unbelievers: for what fellowship have righteousness and iniquity? or what communion hath light with darkness?

General references

Matthew 19:10
The disciples say unto him, If the case of the man is so with his wife, it is not expedient to marry.