Romans 7:3

So then if, while the husband lives, she is joined to another man, she would be called an adulteress. But if the husband dies, she is free from the law, so that she is no adulteress, though she is joined to another man.

Matthew 5:32

but I tell you that whoever puts away his wife, except for the cause of sexual immorality, makes her an adulteress; and whoever marries her when she is put away commits adultery.

Exodus 20:14

"You shall not commit adultery.

Leviticus 20:10

"'The man who commits adultery with another man's wife, even he who commits adultery with his neighbor's wife, the adulterer and the adulteress shall surely be put to death.

Numbers 5:13-31

and a man lies with her carnally, and it is hidden from the eyes of her husband, and is kept close, and she is defiled, and there is no witness against her, and she isn't taken in the act;

Deuteronomy 22:22-24

If a man be found lying with a woman married to a husband, then they shall both of them die, the man who lay with the woman, and the woman: so you shall put away the evil from Israel.

Ruth 2:13

Then she said, "Let me find favor in your sight, my lord, because you have comforted me, and because you have spoken kindly to your handmaid, though I am not as one of your handmaidens."

1 Samuel 25:39-42

When David heard that Nabal was dead, he said, "Blessed is Yahweh, who has pleaded the cause of my reproach from the hand of Nabal, and has kept back his servant from evil. Yahweh has returned the evildoing of Nabal on his own head." David sent and spoke concerning Abigail, to take her to him as wife.

Mark 10:6-12

But from the beginning of the creation, God made them male and female.

John 8:3-5

The scribes and the Pharisees brought a woman taken in adultery. Having set her in the midst,

1 Timothy 5:11-14

But refuse younger widows, for when they have grown wanton against Christ, they desire to marry;

Treasury of Scripture Knowledge

Summary

So then if, while her husband liveth, she be married to another man, she shall be called an adulteress: but if her husband be dead, she is free from that law; so that she is no adulteress, though she be married to another man.

General references

Bible References

So then

Exodus 20:14
"You shall not commit adultery.
Leviticus 20:10
"'The man who commits adultery with another man's wife, even he who commits adultery with his neighbor's wife, the adulterer and the adulteress shall surely be put to death.
Numbers 5:13
and a man lies with her carnally, and it is hidden from the eyes of her husband, and is kept close, and she is defiled, and there is no witness against her, and she isn't taken in the act;
Deuteronomy 22:22
If a man be found lying with a woman married to a husband, then they shall both of them die, the man who lay with the woman, and the woman: so you shall put away the evil from Israel.
Matthew 5:32
but I tell you that whoever puts away his wife, except for the cause of sexual immorality, makes her an adulteress; and whoever marries her when she is put away commits adultery.
Mark 10:6
But from the beginning of the creation, God made them male and female.
John 8:3
The scribes and the Pharisees brought a woman taken in adultery. Having set her in the midst,

Though

Ruth 2:13
Then she said, "Let me find favor in your sight, my lord, because you have comforted me, and because you have spoken kindly to your handmaid, though I am not as one of your handmaidens."
1 Samuel 25:39
When David heard that Nabal was dead, he said, "Blessed is Yahweh, who has pleaded the cause of my reproach from the hand of Nabal, and has kept back his servant from evil. Yahweh has returned the evildoing of Nabal on his own head." David sent and spoke concerning Abigail, to take her to him as wife.
1 Timothy 5:11
But refuse younger widows, for when they have grown wanton against Christ, they desire to marry;

General references

Exodus 20:14
"You shall not commit adultery.
Mark 10:9
What therefore God has joined together, let no man separate."