Deuteronomy 25:5

"When brothers dwell together and one of them dies and has no son, the wife of the deceased shall not become the wife of a {man of another family}; her brother-in-law {shall have sex with her}, and he shall take her {to himself} as wife, and he shall perform his duty as brother-in-law [with respect to] her.

Matthew 22:24

saying, "Teacher, Moses said if someone dies without having children, his brother is to marry his wife and {father} descendants for his brother.

Mark 12:19

"Teacher, Moses wrote for us that if someone's brother dies and he leaves behind a wife and does not leave a child, that his brother should take the wife and {father} descendants for his brother.

Luke 20:28

saying, "Teacher, Moses wrote for us if someone's brother dies having a wife, and this man is childless, that his brother should take the wife and {father} descendants for his brother.

Genesis 38:8-9

Then Judah said to Onan, "Go in to the wife of your brother and perform the duty of a brother-in-law to her, and raise up offspring for your brother."

Ruth 1:12-13

Turn back, my daughters! Go, for {I am too old to have a husband}. If I should think there is hope for me, even if I should have a husband [this] night, and even if I should bear sons,

Ruth 3:9

And he said, "Who [are] you?" And she said, "I [am] Ruth, your servant. Spread {your garment} over your servant because you [are] a redeemer."

Ruth 4:5

And Boaz said, "On the day of your acquiring the field from the hand of Naomi, you also acquire Ruth the Moabite, the wife of the dead [man], [in order] to raise up [for] the name of the dead 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, "Teacher, Moses said if someone dies without having children, his brother is to marry his wife and {father} descendants for his brother.
Mark 12:19
"Teacher, Moses wrote for us that if someone's brother dies and he leaves behind a wife and does not leave a child, that his brother should take the wife and {father} descendants for his brother.
Luke 20:28
saying, "Teacher, Moses wrote for us if someone's brother dies having a wife, and this man is childless, that his brother should take the wife and {father} descendants for his brother.

Husband's brother

Genesis 38:8
Then Judah said to Onan, "Go in to the wife of your brother and perform the duty of a brother-in-law to her, and raise up offspring for your brother."
Ruth 1:12
Turn back, my daughters! Go, for {I am too old to have a husband}. If I should think there is hope for me, even if I should have a husband [this] night, and even if I should bear sons,
Ruth 3:9
And he said, "Who [are] you?" And she said, "I [am] Ruth, your servant. Spread {your garment} over your servant because you [are] a redeemer."
Ruth 4:5
And Boaz said, "On the day of your acquiring the field from the hand of Naomi, you also acquire Ruth the Moabite, the wife of the dead [man], [in order] to raise up [for] the name of the dead his inheritance."

General references

Genesis 38:8
Then Judah said to Onan, "Go in to the wife of your brother and perform the duty of a brother-in-law to her, and raise up offspring for your brother."
Leviticus 18:16
You must not expose the nakedness of your brother's wife; she [is] your brother's nakedness.
Matthew 14:4
because John had been saying to him, "It is not permitted for you to have her."
Luke 20:28
saying, "Teacher, Moses wrote for us if someone's brother dies having a wife, and this man is childless, that his brother should take the wife and {father} descendants for his brother.