The chapter opens with the duty not to look the other way: if you see your brother's ox or sheep going astray, you must bring it back, and the same applies to a donkey, a cloak or anything lost. If you find your brother's animal fallen on the road, you must help it up. Commands follow about not confusing the clothing proper to each sex, letting the mother bird go when taking a nest, and putting a parapet around the roof so that no one falls and the house does not bear bloodguilt.
Certain mixtures are then forbidden: two kinds of seed in the vineyard, plowing with an ox and a donkey together, and wearing wool and linen woven together. Tassels are commanded on the four corners of the cloak.
The second part deals with marriage. If a man falsely accuses his wife of not having been a virgin, her parents present the evidence before the elders; if the charge is false, the man is punished and loses the right to divorce her. If it is true, the woman is judged. Cases of adultery, of the betrothed young woman and of the one who is not betrothed follow, with different penalties depending on the circumstances, and finally a man is forbidden to take his father's wife.