Deuteronomy 24:1–4

If a man take a wife, and have her, and she find not favour in his eyes, for some uncleanness: he shall write a bill of divorce, and shall give it in her hand, and send her out of his house. 2And when she is departed, and marrieth another husband, 3And he also hateth her, and hath given her a bill of divorce, and hath sent her out of his house or is dead: 4The former husband cannot take her again to wife: because she is defiled, and is become abominable before the Lord: lest thou cause thy land to sin, which the Lord thy God shall give thee to possess.