This brings us to Matthew 19 or Mark 10, where Jesus specifically discusses divorce with the Pharisees by saying essentially, “What God has joined together, let no man separate,” and, “Moses permitted you to divorce your wives because your hearts were hard. But it was not this way from the beginning. I tell you that anyone who divorces his wife, except for immorality, and marries another woman, commits adultery.”
So, a plain reading of Jesus’ statements says you can’t divorce unless:
You're a man (since the extremely strict reading of the Jewish tradition of divorce is for only a man), AND There is immorality
But, it is of the utmost importance to remember the context of this statement, which so many people will try to shove down your throat as the reason why you can’t get a divorce. This is Jesus, a Jewish rabbi, the messiah, talking to the Pharisees about divorce when they are testing him, knowing full well that Deuteronomy 24:1 essentially allows divorce for a myriad of reasons.