He said unto them,
Moses because of the hardness of your hearts allowed you to put away your wives: but from the beginning it was not so.
All Commentaries on Matthew 19:8 Go To Matthew 19
John Chrysostom
AD 407
Nevertheless, unspeakable wisdom makes a defense even for these things, and says, Moses for the hardness of your hearts thus made the law. And not even him does He suffer to remain under accusation, forasmuch as He had Himself given him the law; but delivers him from the charge, and turns the whole upon their head, as everywhere He does.
For again when they were blaming His disciples for plucking the ears of grain, He shows themselves to be guilty; and when they were laying a transgression to their charge as to their not washing their hands, He shows themselves to be the transgressors, and touching the Sabbath also: both everywhere, and here in like manner.
Then because the saying was hard to bear, and brought on them much blame, He quickly directs back His discourse to that ancient law, saying as He had said before also, But in the beginning it was not so, that is, God by His acts at the beginning ordained the contrary. For in order that they may not say, Whence is it manifest, that for our hardness Moses said this? hereby again He stops their mouths. For if this were the primary law, and for our good, that other would not have been given at the beginning; God in creating would not have so created, He would not have said such things.