Divorce is not permitted unless there is sexual immorality, or an unbelieving spouse abandons a believing spouse. However, even if both divorce for either of these two reasons, or any other reason at all, neither can ever remarry unless one of them dies. For regardless of whether a couple is together, separated, or divorced, they are still married before God. As such, if either remarries, they commit adultery. As well as whoever marries them. For more on this study along with scriptures, go to http://www.wisdomofgod.co/2017/03/02/divorce-and-the-sin-of-remarriage/ .