Deuteronomy 23:25-24:4

When you enter another man's vineyard, you may eat as many grapes as you want, until you are full, but you must not put any in your vessel. When you enter another man's field of standing grain, you may pluck ears with your hand; but you must not put a sickle to your neighbor's grain. A man takes a wife and possesses her. She fails to please him because he finds something obnoxious about her, and he writes her a bill of divorcement, hands it to her, and sends her away from his house; she leaves his household and becomes the wife of another man; then this latter man rejects her, writes her a bill of divorcement, hands it to her, and sends her away from his house; or the man who married her last dies. Then the first husband who divorced her shall not take her to wife again, since she has been defiled--for that would be abhorrent to the Lord. You must not bring sin upon the land that the Lord your God is giving you as a heritage.