Deuteronomy 25:5

When brethren dwell together and one of them die and have no child, the wife of the dead shall not be given out unto a stranger: but her brother-in-law shall go in unto her and take her to wife and marry her.

Matthew 22:24

saying, "Master, Moses bade, if a man die having no children, that the brother marry his wife, and raise up seed unto his brother.

Mark 12:19

"Master, Moses wrote unto us, if any man's brother die, and leave his wife behind him, and leave no children: that then his brother should take his wife, and raise up seed unto his brother.

Luke 20:28

saying, "Master, Moses wrote unto us, 'if any man's brother die having a wife; And the same die without issue: that then his brother should take his wife, and raise up seed unto his brother.'

Genesis 38:8-9

Then said Judah unto Onan, go in to thy brother's wife and marry her, and stir up seed unto thy brother.

Ruth 1:12-13

Turn again my daughters and go: for I am too old to have a husband. If I said I have hope, also if I took a man this night: yea, and though I had already borne sons?

Ruth 3:9

Then he said, "What art thou?" And she answered, "I am Ruth, thine handmaid. Spread thy mantle over thine handmaid, for thou art the next of the kin."

Ruth 4:5

Then said Boaz, "What day thou buyest the field of the hand of Naomi, thou must take also Ruth the Moabite the wife of the dead, to stir up the name of the dead upon 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
saying, "Master, Moses bade, if a man die having no children, that the brother marry his wife, and raise up seed unto his brother.
Mark 12:19
"Master, Moses wrote unto us, if any man's brother die, and leave his wife behind him, and leave no children: that then his brother should take his wife, and raise up seed unto his brother.
Luke 20:28
saying, "Master, Moses wrote unto us, 'if any man's brother die having a wife; And the same die without issue: that then his brother should take his wife, and raise up seed unto his brother.'

Husband's brother

Genesis 38:8
Then said Judah unto Onan, go in to thy brother's wife and marry her, and stir up seed unto thy brother.
Ruth 1:12
Turn again my daughters and go: for I am too old to have a husband. If I said I have hope, also if I took a man this night: yea, and though I had already borne sons?
Ruth 3:9
Then he said, "What art thou?" And she answered, "I am Ruth, thine handmaid. Spread thy mantle over thine handmaid, for thou art the next of the kin."
Ruth 4:5
Then said Boaz, "What day thou buyest the field of the hand of Naomi, thou must take also Ruth the Moabite the wife of the dead, to stir up the name of the dead upon his inheritance."

General references

Genesis 38:8
Then said Judah unto Onan, go in to thy brother's wife and marry her, and stir up seed unto thy brother.
Leviticus 18:16
Thou shalt not unhele the privity of thy brother's wife, for that is thy brother's privity.
Matthew 14:4
For John said unto him, "It is not lawful for thee to have her."
Luke 20:28
saying, "Master, Moses wrote unto us, 'if any man's brother die having a wife; And the same die without issue: that then his brother should take his wife, and raise up seed unto his brother.'