'Divorce' in the Bible

So her husband Joseph, being a righteous man, and not wanting to disgrace her publicly, decided to divorce her secretly.

“It was also said, Whoever divorces his wife must give her a written notice of divorce.

Some Pharisees approached Him to test Him. They asked, “Is it lawful for a man to divorce his wife on any grounds?”

“Why then,” they asked Him, “did Moses command us to give divorce papers and to send her away?”

He told them, “Moses permitted you to divorce your wives because of the hardness of your hearts. But it was not like that from the beginning.