Answer
Luke 16:18
Everyone who divorces his wife and marries another commits adultery, and he who marries a woman divorced from her husband commits adultery.
Matthew 5:32
But I say to you that everyone who divorces his wife, except on the ground of sexual immorality, makes her commit adultery, and whoever marries a divorced woman commits adultery.
1 Corinthians 7:10-11
To the married I give this charge (not I, but the Lord): the wife should not separate from her husband (but if she does, she should remain unmarried or else be reconciled to her husband), and the husband should not divorce his wife.
1 Corinthians 7:15
But if the unbelieving partner separates, let it be so. In such cases the brother or sister is not enslaved. God has called you to peace.
Matthew 19:6
So they are no longer two but one flesh. What therefore God has joined together, let not man separate.
Matthew 19:9
And I say to you: whoever divorces his wife, except for sexual immorality, and marries another, commits adultery.
Malachi 2:16
For the man who does not love his wife but divorces her, says the Lord, the God of Israel, covers his garment with violence, says the Lord of hosts. So guard yourselves in your spirit, and do not be faithless.
Matthew 19:8
He said to them, “Because of your hardness of heart Moses allowed you to divorce your wives, but from the beginning it was not so."
Romans 7:2
For a married woman is bound by law to her husband while he lives, but if her husband dies she is released from the law of marriage.
Mark 10:12
And if she divorces her husband and marries another, she commits adultery.
Matthew 5:31-32
It was also said, "Whoever divorces his wife, let him give her a certificate of divorce.’ But I say to you that everyone who divorces his wife, except on the ground of sexual immorality, makes her commit adultery, and whoever marries a divorced woman commits adultery."
Hebrews 13:4
Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous.
1 Corinthians 7:10
To the married I give this charge (not I, but the Lord): the wife should not separate from her husband
Jeremiah 3:8
She saw that for all the adulteries of that faithless one, Israel, I had sent her away with a decree of divorce. Yet her treacherous sister Judah did not fear, but she too went and played the whore.
1 Corinthians 7:39
A wife is bound to her husband as long as he lives. But if her husband dies, she is free to be married to whom she wishes, only in the Lord.
Jeremiah 3:1
If a man divorces his wife and she goes from him and becomes another man's wife, will he return to her? Would not that land be greatly polluted? You have played the whore with many lovers; and would you return to me? declares the Lord.
1 Corinthians 7:11
(but if she does, she should remain unmarried or else be reconciled to her husband), and the husband should not divorce his wife.
Mark 10:11
And he said to them, “Whoever divorces his wife and marries another commits adultery against her,"
Isaiah 50:1
Thus says the Lord: “Where is your mother's certificate of divorce, with which I sent her away? Or which of my creditors is it to whom I have sold you? Behold, for your iniquities you were sold, and for your transgressions your mother was sent away."
Romans 7:2-3
For a married woman is bound by law to her husband while he lives, but if her husband dies she is released from the law of marriage. Accordingly, she will be called an adulteress if she lives with another man while her husband is alive. But if her husband dies, she is free from that law, and if she marries another man she is not an adulteress.
Unless otherwise noted, all Bible verses are from The Holy Bible, English Standard Version® Copyright© 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.
Special thanks to OpenBible.info for the data on the most well-known Bible verses.