Deuteronomy 24:1-4

If a man marries a woman and then it happens that he no longer likes her because he has found something wrong with her, he may give her divorce papers, put them in her hand, and send her off. After she leaves, if she becomes another man’s wife and he also comes to hate her and this second husband also gives her divorce papers, puts them in her hand, and sends her off, or if he should die, then the first husband who divorced her can’t marry her again. She has made herself ritually unclean, and her remarriage would be an abomination in the Presence of GOD and defile the land with sin, this land that GOD, your God, is giving you as an inheritance.