Deuteronomy 23:23-25

Young's Literal Translation

²³ The produce of thy lips thou dost keep, and hast done [it], as thou hast vowed to Jehovah thy God; a free-will-offering, which thou hast spoken with thy mouth.

²⁴ `When thou comest in unto the vineyard of thy neighbour, then thou hast eaten grapes, according to thy desire, thy sufficiency; but into thy vessel thou dost not put [any].

²⁵ When thou comest in among the standing-corn of thy neighbour, then thou hast plucked the ears with thy hand, but a sickle thou dost not wave over the standing-corn of thy neighbour.