Luke 16:18

'Every one who is sending away his wife, and marrying another, doth commit adultery; and every one who is marrying her sent away from a husband doth commit adultery.

Matthew 19:9

'And I say to you, that, whoever may put away his wife, if not for whoredom, and may marry another, doth commit adultery; and he who did marry her that hath been put away, doth commit adultery.'

Matthew 5:31-32

'And it was said, That whoever may put away his wife, let him give to her a writing of divorce;

Mark 10:11-12

and he saith to them, 'Whoever may put away his wife, and may marry another, doth commit adultery against her;

1 Corinthians 7:4

the wife over her own body hath not authority, but the husband; and, in like manner also, the husband over his own body hath not authority, but the wife.

1 Corinthians 7:10-12

and to the married I announce -- not I, but the Lord -- let not a wife separate from a husband:

Treasury of Scripture Knowledge

Summary

Whosoever putteth away his wife, and marrieth another, committeth adultery: and whosoever marrieth her that is put away from her husband committeth adultery.

Bible References

General references

Matthew 5:32
but I -- I say to you, that whoever may put away his wife, save for the matter of whoredom, doth make her to commit adultery; and whoever may marry her who hath been put away doth commit adultery.
Matthew 19:9
'And I say to you, that, whoever may put away his wife, if not for whoredom, and may marry another, doth commit adultery; and he who did marry her that hath been put away, doth commit adultery.'
Mark 10:11
and he saith to them, 'Whoever may put away his wife, and may marry another, doth commit adultery against her;
1 Corinthians 7:4
the wife over her own body hath not authority, but the husband; and, in like manner also, the husband over his own body hath not authority, but the wife.