Matthew 5:31
"It was also said, 'Whoever divorces his wife, let him give her a certificate of divorce.'
Jeremiah 3:1
"If a man divorces his wife and she goes from him and becomes another man's wife, will he return to her? Would not that land be greatly polluted? You have played the whore with many lovers; and would you return to me? declares the LORD.
Matthew 19:7
They said to him, "Why then did Moses command one to give a certificate of divorce and to send her away?"
Deuteronomy 24:1-4
"When a man takes a wife and marries her, if then she finds no favor in his eyes because he has found some indecency in her, and he writes her a certificate of divorce and puts it in her hand and sends her out of his house, and she departs out of his house,
Matthew 19:3
And Pharisees came up to him and tested him by asking, "Is it lawful to divorce one's wife for any cause?"
Mark 10:2-9
And Pharisees came up and in order to test him asked, "Is it lawful for a man to divorce his wife?"