Deuteronomy 25:4-6

Amplified Bible, Classic Edition

⁴ You shall not muzzle the ox when he treads out the grain.^(A)

⁵ If brothers live together and one of them dies and has no son, his wife shall not be married outside the family to a stranger [an excluded man]. Her husband’s brother shall go in to her and take her as his wife and perform the duty of a husband’s brother to her.

⁶ And the firstborn son shall succeed to the name of the dead brother, that his name may not be blotted out of Israel.