Deuteronomy 23:24

24, 25. When thou comest into thy neighbour's vineyard, then thou mayest eat grapes thy fill at thine own pleasure—Vineyards, like cornfields mentioned in the next verse [Deuteronomy 23:25], were often unenclosed. In vine-growing countries grapes are amazingly cheap; and we need not wonder, therefore, that all within reach of a person's arm, was free; the quantity plucked was a loss never felt by the proprietor, and it was a kindly privilege afforded to the poor and wayfaring man.