Deuteronomy 25:5

When brothers live together and one of them dies without a son the wife of the deceased shall not marry outside the family to a strange man. Her husband's brother shall marry her and perform the duty of a husband's brother to her.

Matthew 22:24

Teacher, Moses said if a man dies having no children, his brother should marry his wife, and bring up seed for his brother.

Mark 12:19

Teacher, Moses wrote that if a man's brother die, and leave a wife behind him, and leave no child, that his brother should take his wife, and raise up seed for his brother.

Luke 20:28

They asked him: Teacher, Moses wrote if a man's brother dies and he is childless, his brother should take the wife, and raise up seed for his brother.

Genesis 38:8-9

Then Judah said to Er's brother Onan: Go sleep with your brother's widow. Fulfill your obligation to her as her husband's brother. That way your brother may have descendants.

Ruth 1:12-13

Return home, my daughters. I am too old to get married again. Even if I thought there was still hope, and got married and had sons,

Ruth 3:9

He said: Who are you? She answered: I am your servant Ruth. Spread your garment over me, for you are my kinsman.

Ruth 4:5

Then Boaz said: On the day when you take this field, you will have to take with it Ruth, the Moabitess, the wife of the dead, so that you may keep the name of the dead living in his heritage.

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
Teacher, Moses said if a man dies having no children, his brother should marry his wife, and bring up seed for his brother.
Mark 12:19
Teacher, Moses wrote that if a man's brother die, and leave a wife behind him, and leave no child, that his brother should take his wife, and raise up seed for his brother.
Luke 20:28
They asked him: Teacher, Moses wrote if a man's brother dies and he is childless, his brother should take the wife, and raise up seed for his brother.

Husband's brother

Genesis 38:8
Then Judah said to Er's brother Onan: Go sleep with your brother's widow. Fulfill your obligation to her as her husband's brother. That way your brother may have descendants.
Ruth 1:12
Return home, my daughters. I am too old to get married again. Even if I thought there was still hope, and got married and had sons,
Ruth 3:9
He said: Who are you? She answered: I am your servant Ruth. Spread your garment over me, for you are my kinsman.
Ruth 4:5
Then Boaz said: On the day when you take this field, you will have to take with it Ruth, the Moabitess, the wife of the dead, so that you may keep the name of the dead living in his heritage.

General references

Genesis 38:8
Then Judah said to Er's brother Onan: Go sleep with your brother's widow. Fulfill your obligation to her as her husband's brother. That way your brother may have descendants.
Leviticus 18:16
Do not have sexual intercourse with your sister-in-law. She is your brother's wife.
Matthew 14:4
For John had said to him: It is not lawful for you to have her.
Luke 20:28
They asked him: Teacher, Moses wrote if a man's brother dies and he is childless, his brother should take the wife, and raise up seed for his brother.