Matthew 19:10-12

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

11And he said to them, All cannot receive this word, but those to whom it has been given;

12for there are eunuchs which have been born thus from [their] mother's womb; and there are eunuchs who have been made eunuchs of men; and there are eunuchs who have made eunuchs of themselves for the sake of the kingdom of the heavens. He that is able to receive [it], let him receive [it].