Matthew 19:10 (KJV)

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 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.

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.

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

For there are some eunuchs, which were so born from their mother's womb: and there are some eunuchs, which were made eunuchs of men: and there be eunuchs, which have made themselves eunuchs for the kingdom of heaven's sake. He that is able to receive it, let him receive it.

Then were there brought unto him little children, that he should put his hands on them, and pray: and the disciples rebuked them.

But Jesus said, Suffer little children, and forbid them not, to come unto me: for of such is the kingdom of heaven.

And he laid his hands on them, and departed thence.