Matthew 19:10

But what took place there, this happened here also. For as there, when the Jews had been put to silence the disciples were troubled, and came unto Him with Peter and said, "Declare unto us this parable;" even so now also they were troubled and said, "If the case of the man be so, it is good not to marry." For now they understood the saying more than before. Therefore then indeed they held their peace, but now when there hath been gainsaying, and answering, and question, and learning by reply, and the law appeared more clear, they ask Him. And openly to contradict they do not dare, but they bring forward what seemed to be a grievous and galling result of it, saying, "If the case of the man be so with his wife, it is not good to marry." For indeed it seemed to be a very hard thing to have a wife full of every bad quality, and to endure a wild beast perpetually shut up with one in the house. And that thou mayest learn that this greatly troubled them, Mark said, to show it, that they spake to Him privately. But what is, "If such be the case of a man with his wife?" That is, if to this end he is joined with her, that they should be one, or, on the other hand, if the man shall get to himself blame for these things, and always transgresses by putting away, it were easier to fight against natural desire and against one's self, than against a wicked woman.

A wife is a grievous burden, if it is not permitted to put her away except for the cause of fornication. For what if she be a drunkard, an evil temper, or of evil habits, is she to be kept? The Apostles, perceiving this burden someness, express what they feel; His disciples say unto him, If the case of the man be so with his wife, it is not good to marry.

And the Lord said not, It is good, but rather assented that it is not good. However, He considered the weakness of the flesh; But he said unto them, All cannot receive this saying; that is, All are not able to do this. But all cannot obtain it, because all do not desire to obtain it. The prize is before them; he who desires the honour will not consider the toil. None would ever vanquish, if all shunned the struggle. Because then some have fallen from their purpose of continence, we ought not therefore to faint from that virtue; for they that fall in the battle do not slay the rest. That He says therefore, Save they to whom it is given, shows that unless we receive the aid of grace, we have not strength. But this aid of grace is not denied to such as seek it, for the Lord says above, Ask, and ye shall receive.