But I say unto you, That whosoever shall put away his wife, except for the cause of fornication, causes her to commit adultery: and whosoever shall marry her that is divorced commits adultery.
All Commentaries on Matthew 5:32 Go To Matthew 5
John Chrysostom
AD 407
How can one who is meek and a peacemaker and poor in spirit and merciful cast out his wife? How can one who reconciles be alienated from her that is his own? … Even in this case he makes one exception: “for the cause of fornication.” One who does not look with unchaste eyes upon another woman will certainly not commit fornication. By not committing fornication he will give no occasion that they should become alienated. Thus you see Jesus presses his point without reserve and builds up this fear as a bulwark, urging on the husband great danger, who if he does cast her out, makes himself accountable for her adultery. The Gospel of Matthew, Homily