Deuteronomy 25:3-5

Young's Literal Translation

³ forty [times] he doth smite him -- he is not adding, lest, he is adding to smite him above these -- many stripes, and thy brother is lightly esteemed in thine eyes.

⁴ `Thou dost not muzzle an ox in its threshing.

⁵ `When brethren dwell together, and one of them hath died, and hath no son, the wife of the dead is not without to a strange man; her husband's brother doth go in unto her, and hath taken her to him for a wife, and doth perform the duty of her husband's brother;