Deuteronomy 24:3

24:3 If the second husband rejects her and then divorces her, gives her the papers, and evicts her from his house, or if the second husband who married her dies,

Jeremiah 3:8

3:8 She also saw that I gave wayward Israel her divorce papers and sent her away because of her adulterous worship of other gods. Even after her unfaithful sister Judah had seen this, she still was not afraid, and she too went and gave herself like a prostitute to other gods.

Matthew 5:31-32

Divorce

5:31 “It was said, ‘Whoever divorces his wife must give her a legal document.’ 5:32 But I say to you that everyone who divorces his wife, except for immorality, makes her commit adultery, and whoever marries a divorced woman commits adultery.

Matthew 19:7-9

19:7 They said to him, “Why then did Moses command us to give a certificate of dismissal and to divorce her?” 19:8 Jesus said to them, “Moses permitted you to divorce your wives because of your hard hearts, but from the beginning it was not this way. 19:9 Now I say to you that whoever divorces his wife, except for immorality, and marries another commits adultery.”

Mark 10:4-12

10:4 They said, “Moses permitted a man to write a certificate of dismissal and to divorce her.” 10:5 But Jesus said to them, “He wrote this commandment for you because of your hard hearts. 10:6 But from the beginning of creation he made them male and female. 10:7 For this reason a man will leave his father and mother, 10:8 and the two will become one flesh. So they are no longer two, but one flesh. 10:9 Therefore what God has joined together, let no one separate.”

10:10 In the house once again, the disciples asked him about this. 10:11 So he told them, “Whoever divorces his wife and marries another commits adultery against her. 10:12 And if she divorces her husband and marries another, she commits adultery.”