Deuteronomy 25:5

“When brothers live together and one of them dies and has no son, the wife of the deceased shall not be married outside the family to a strange man. Her husband’s brother shall go in to her and take her to himself as wife and perform the duty of a husband’s brother to her.

Matthew 22:24

asking, “Teacher, Moses said, ‘If a man dies having no children, his brother as next of kin shall marry his wife, and raise up children for his brother.’

Mark 12:19

“Teacher, Moses wrote for us that if a man’s brother dies and leaves behind a wife and leaves no child, his brother should marry the wife and raise up children to his brother.

Luke 20:28

and they questioned Him, saying, “Teacher, Moses wrote for us that if a man’s brother dies, having a wife, and he is childless, his brother should marry the wife and raise up children to his brother.

Genesis 38:8-9

Then Judah said to Onan, “Go in to your brother’s wife, and perform your duty as a brother-in-law to her, and raise up offspring for your brother.”

Ruth 1:12-13

Return, my daughters! Go, for I am too old to have a husband. If I said I have hope, if I should even have a husband tonight and also bear sons,

Ruth 3:9

He said, “Who are you?” And she answered, “I am Ruth your maid. So spread your covering over your maid, for you are a close relative.”

Ruth 4:5

Then Boaz said, “On the day you buy the field from the hand of Naomi, you must also acquire Ruth the Moabitess, the widow of the deceased, in order to raise up the name of the deceased on his inheritance.”

Treasury of Scripture Knowledge

Summary

If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of an husband's brother unto her.

Bible References

Brethren

Matthew 22:24
asking, “Teacher, Moses said, ‘If a man dies having no children, his brother as next of kin shall marry his wife, and raise up children for his brother.’
Mark 12:19
“Teacher, Moses wrote for us that if a man’s brother dies and leaves behind a wife and leaves no child, his brother should marry the wife and raise up children to his brother.
Luke 20:28
and they questioned Him, saying, “Teacher, Moses wrote for us that if a man’s brother dies, having a wife, and he is childless, his brother should marry the wife and raise up children to his brother.

Husband's brother

Genesis 38:8
Then Judah said to Onan, “Go in to your brother’s wife, and perform your duty as a brother-in-law to her, and raise up offspring for your brother.”
Ruth 1:12
Return, my daughters! Go, for I am too old to have a husband. If I said I have hope, if I should even have a husband tonight and also bear sons,
Ruth 3:9
He said, “Who are you?” And she answered, “I am Ruth your maid. So spread your covering over your maid, for you are a close relative.”
Ruth 4:5
Then Boaz said, “On the day you buy the field from the hand of Naomi, you must also acquire Ruth the Moabitess, the widow of the deceased, in order to raise up the name of the deceased on his inheritance.”

General references

Genesis 38:8
Then Judah said to Onan, “Go in to your brother’s wife, and perform your duty as a brother-in-law to her, and raise up offspring for your brother.”
Leviticus 18:16
You shall not uncover the nakedness of your brother’s wife; it is your brother’s nakedness.
Matthew 14:4
For John had been saying to him, “It is not lawful for you to have her.”
Luke 20:28
and they questioned Him, saying, “Teacher, Moses wrote for us that if a man’s brother dies, having a wife, and he is childless, his brother should marry the wife and raise up children to his brother.