Deuteronomy 25:5
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.
ā The Restored Word Bible
Context
3 Forty stripes he may give him, not exceed: lest, he should exceed, and beat him above these with many stripes, then your brother should seem vile unto you.
4 you shall not muzzle the ox when he treadeth out .
5 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.
6 And it shall be, the firstborn which she beareth shall succeed in the name of his brother dead, that his name be not put out of Israel.
7 And if the man like not to take his brother's wife, then let his brother's wife go up to the gate unto the elders, and say, My husband's brother refuseth to raise up unto his brother a name in Israel, he will not perform the duty of my husband's brother.