If you see your brother’s ox or his sheep wandering, do not go by without helping, but take them back to your brother. If their owner is not near, or if you are not certain who he is, then take the beast to your house and keep it till its owner comes in search of it, and then you are to give it back to him. Do the same with his ass or his robe or anything which has gone from your brother’s keeping and which you have come across: do not keep it to yourself. (Deuteronomy, 22:1-3)