When you come into your neighbor's vineyard, then you may eat your fill of grapes at your own pleasure; but you shall not put any in your vessel.
All Commentaries on Deuteronomy 23:24 Go To Deuteronomy 23
Augustine of Hippo
AD 430
Let all the servants of God grant [the monks] permission to enter their fields whenever they wish and to depart when well fed and satisfied. This is according to the law given to the people of Israel that no one should arrest a thief in his fields unless he wished to take something away with him. Rather, the owner of the field should permit him who had touched nothing but what he had eaten to depart free and unpunished.