Deuteronomy 24:1-5

“When a man takes a wife and marries her, and it happens that she finds no favor in his eyes because he has found some uncleanness in her, and he writes her a certificate of divorce, puts it in her hand, and sends her out of his house, when she has departed from his house, and goes and becomes another man’s wife, if the latter husband detests her and writes her a certificate of divorce, puts it in her hand, and sends her out of his house, or if the latter husband dies who took her as his wife, then her former husband who divorced her must not take her back to be his wife after she has been defiled; for that is an abomination before the LORD, and you shall not bring sin on the land which the LORD your God is giving you as an inheritance. “When a man has taken a new wife, he shall not go out to war or be charged with any business; he shall be free at home one year, and bring happiness to his wife whom he has taken.