1 Corinthians 7:10-12
International Children’s Bible
10 Now I give this command for the married people. (The command is not from me; it is from the Lord.) A wife should not leave her husband. 11 But if she does leave, she must not marry again. Or she should go back to her husband. Also the husband should not divorce his wife.
12 For all the others I say this (I am saying this, not the Lord): A brother in Christ might have a wife who is not a believer. If she will live with him, he must not divorce her.Read full chapter