Deuteronomy 22:19 "And she shall be his wife"

If a man accuses his wife of not conducting herself properly and, therefore, wants to divorce her, the court must investigate his claim.

If his complaint is proven false, he is commanded to remain married to her for the rest of their lives. It is hoped that he will appease her and that she will forgive him. They will then put effort into recreating a pleasant marriage together (see Negative Mitzvah 359).