Matthew 19:9
And I say unto you, Whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and whoso marrieth her which is put away doth commit adultery.
Cross-reference
Matthew 5:32 gives the same exception clause — 'except for sexual immorality' — confirming the consistent teaching on remarriage after divorce.
In Jeremiah 3:1, the OT law on divorce and remarriage is cited, showing that remarrying a divorced wife defiles the land—same principle Jesus applies.
Jeremiah 3:8 shows God divorcing unfaithful Israel with a certificate — mirroring the marital unfaithfulness in Jesus' exception clause.
Ezekiel 16:15 depicts Israel's harlotry after the covenant — illustrating the kind of unfaithfulness Jesus cites as grounds for divorce.
Mark 10:11 parallels this saying — without the exception clause — emphasizing that remarriage after divorce is adultery.
Mark 10:12 extends the principle to a woman divorcing her husband — adding the other side of the same sin in this synoptic parallel.
Luke 16:18 similarly states that divorce and remarriage is adultery — a parallel synoptic account without Matthew's exception.
In Romans 7:2, Paul states a wife is bound by law to her husband while he lives, reinforcing the lifelong bond that makes remarriage adultery.
In Romans 7:3, Paul explicitly says remarriage while the first spouse lives is adultery—directly supporting Jesus' teaching on divorce.
In 1 Corinthians 7:10-13, Paul echoes Jesus' divorce command and adds guidance for mixed marriages with an unbelieving spouse.
In 1 Corinthians 7:11, Paul instructs separated wives to remain unmarried or reconcile—consistent with Jesus' prohibition on remarriage.