[stuartcr]

Why would anyone make an oath to God, especially one that denies a biological function?

[Petronski]

It's a calling. And it is a voluntary oath.

[eastsider]

Why would anyone make an oath to God, especially one that denies a biological function?

"For some are eunuchs because they were born that way; others were made that way by men; and others have made themselves eunuchs because of the kingdom of heaven. The one who can accept this should accept it." (Mt19:12 (NIV))