Matthew 19:9-12

And I say unto you, Whosoever shall put away his wife, except for fornication, and shall marry another, committeth adultery: and he that marrieth her when she is put away committeth adultery. The disciples say unto him, If the case of the man is so with his wife, it is not expedient to marry. But he said unto them, Not all men can receive this saying, but they to whom it is given. For there are eunuchs, that were so born from their mother’s womb: and there are eunuchs, that were made eunuchs by men: and there are eunuchs, that made themselves eunuchs for the kingdom of heaven’s sake. He that is able to receive it, let him receive it.