Matthew 19:9
What does Matthew 19:9 mean?
I tell you that whoever divorces his wife, except for sexual immorality, and marries another, commits adultery; and he who marries her when she is divorced commits adultery.”
The short answer
In Matthew 19:9, Jesus says that a man who divorces his wife, "except for sexual immorality," and marries someone else commits adultery. To modern ears this sounds like a legal ruling, and in a sense it was meant to. The Pharisees had just asked him whether a man could divorce his wife "for any reason," a question that dropped Jesus straight into a live first-century argument. One school of rabbinic thought (following Hillel) allowed divorce for almost any cause, even a badly cooked meal; another (following Shammai) restricted it to serious sexual offense. The questioners wanted Jesus to pick a side.
At first, he refuses the question entirely. Instead of debating grounds for divorce, he goes back to creation: God made humans male and female, and the two become one flesh, so what God has joined, people should not separate. When the Pharisees press him about Moses permitting divorce, Jesus answers that Moses allowed it because of hardness of heart. Divorce, in other words, was never the design; it was a concession to human brokenness.
Only then does verse 9 arrive, and it lands harder than either school expected. Jesus is not offering a checklist of acceptable exit clauses. He is saying that treating marriage as disposable—trading one spouse for another—is a betrayal serious enough to be called adultery. The exception for sexual immorality acknowledges that unfaithfulness can shatter a marriage from within, but the thrust of the saying runs the other way: the problem is not finding the right legal loophole, it is the hard heart that goes looking for one. Read this way, the verse is stricter than permission-seekers want and more merciful than moralists assume, because it addresses what marriage is for before it ever addresses who is allowed out.
What scholars say
Alyce McKenzie pushes back on the assumption that Jesus simply sided with the stricter rabbinic school, pointing out that he initially ignores the question of grounds altogether and locates Moses' allowance of divorce in human hard-heartedness. N. T. Wright then draws the discussion into the present, arguing that Western individualism's claimed "right to happiness" has overridden loyalty, vows, and the duty to raise children lovingly.
“Given such a background, Jesus is said to endorse Shammai’s interpretation in Matthew (and something even stricter in Mark 10, where the “exception clause” of Matthew 19:9 is missing). This is simply not true. Jesus initially ignores the question of grounds for divorce and then, when pressed, says that Moses permitted it because people are hard-hearted. Such allowance is apparently something Jesus endorses (since he doesn’t say otherwise). The answer to the question “Should a man be allowed to divorce his wife for any cause?” is “Yes! Any man who is hard-hearted should be allowed to write his wife a certificate of divorce for any reason—or even for no reason at all.” Divorce is always permissible, and no rationale is required beyond being hard-hearted.”
“The whole discussion in Matthew 19.3–15 is of great relevance today. We live at a time when what used to be thought of as ‘Christian’ behaviour in the area of marriage and family has been rejected by large swathes of Western society – though upheld in many traditional cultures, including several explicitly non-Christian ones. The rampant individualism of the last few hundred years in the West has left families, and children, in bad shape, as people act on the belief that they have, as individuals, a ‘right to happiness’ which overrides all considerations of loyalty, keeping vows, and the duty to bring up lovingly the children one has brought into the world.”
What it means for you
This verse resists being turned into either a weapon or a loophole. For a reader today, its challenge is to stop asking "What am I technically allowed to do?" and start asking "What is my heart doing?" Marriage, in Jesus' telling, is covenant, not contract—a bond meant to hold even when personal happiness wavers.
That does not mean God is indifferent to people trapped in broken or abusive marriages; the passage names human hard-heartedness honestly rather than pretending it away. But it does mean that loyalty, kept promises, and the well-being of children are weightier than the modern instinct to treat relationships as upgradeable. The verse invites self-examination before self-justification.
Matthew 19 in context
Matthew 19 opens with Jesus leaving Galilee for Judea, where Pharisees approach him with a test question about divorce (19:3). Jesus answers by quoting Genesis—male and female, one flesh—before the exchange about Moses, hard hearts, and verse 9's pronouncement. His own disciples are startled enough to suggest it might be better not to marry at all, and Jesus responds with a saying about celibacy for the kingdom. The chapter then moves to Jesus blessing children and to the rich young man, continuing the theme of what wholehearted devotion to God actually costs.