Deuteronomy 22:3

22:3 You shall do the same to his donkey, his clothes, or anything else your neighbor has lost and you have found; you must not refuse to get involved.

Deuteronomy 23:24

23:24 When you enter the vineyard of your neighbor you may eat as many grapes as you please, but you must not take away any in a container.

Deuteronomy 24:10

24:10 When you make any kind of loan to your neighbor, you may not go into his house to claim what he is offering as security.