Matthew 19:9

⁷  They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away?

⁸  He saith 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.

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.

¹⁰  His disciples say unto him, If the case of the man be so with his wife, it is not good to marry.

¹¹  But he said unto them, All men cannot receive this saying, save they to whom it is given.