Deuteronomy 25:6-8

Darby Translation

⁶ And it shall be, that the firstborn that she beareth shall stand in the name of his brother who is dead, that his name be not blotted out from Israel.

⁷ But if the man like not to take his brother's wife, his brother's wife shall 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 for me the duty of a husband's brother.

⁸ Then the elders of his city shall call him and speak unto him; and if he stand to it and say, I like not to take her;