Deuteronomy 24:3 ERV

[3] But suppose the new husband also does not like her and sends her away. If that man divorces her, the first husband may not take her again to be his wife. Or if the new husband dies, her first husband may not take her again to be his wife. She has become unclean to him. If he married her again, he would be doing something the LORD hates. You must not sin like this in the land that the LORD your God is giving you.