Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 19
And it came to pass, that when Jesus had finished these sayings, he departed from Galilee, and came into the coasts of Judæa beyond Jordan; And great multitudes followed him; and he healed them there. The Pharisees also came unto him, tempting him, and saying unto him, Is it lawful for a man to put away his wife for every cause? And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female, And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh? Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder. They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away? He said unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so.
But, as when you see one much pursuing the acquaintance of physicians, you know that he is sick, so, when you see either man or woman enquiring concerning divorce, know that that man is lustful and that woman unchaste. For chastity has pleasure in wedlock, but desire is tormented as though under a slavish bondage therein. And knowing that they had no sufficient cause to allege for their putting away their wives, save their own lewdness, they feigned many divers causes. They feared to ask Him for what cause, lest they should be tied down within the limits of fixed and certain causes; and therefore they asked if it were lawful for every cause; for they knew that appetite knows no limits, and cannot hold itself within the bounds of one marriage, but the more it is indulged the more it is kindled.