Matthew 19:10-12

10His disciples say to him, If the case of the man is so with his wife, it is not good to marry. 11But he said to them, All men cannot receive this saying, except they to whom it is given. 12For there are some eunuchs, who were so born from their mother’s womb: and there are some eunuchs, who were made eunuchs by men: and there are eunuchs, who have made themselves eunuchs for the kingdom of heaven’s sake. He that is able to receive it, let him receive it .