'Eunuchs' in the Bible

And the [Babylonian] king told Ashpenaz, the chief of his officials, to bring in some of the sons of Israel, including some from the royal family and from the nobles,

The commander of the officials gave them [Babylonian] names: Daniel he named Belteshazzar, Hananiah he named Shadrach, Mishael he named Meshach, and Azariah he named Abed-nego.

But Daniel made up his mind that he would not defile (taint, dishonor) himself with the king’s finest food or with the wine which the king drank; so he asked the commander of the officials that he might [be excused so that he would] not defile himself.

Now God granted Daniel favor and compassion in the sight of the commander of the officials,

and the commander of the officials said to Daniel, “I am afraid of my lord the king, who has prearranged your food and your drink; for why should he see your faces looking more haggard than the young men who are your own age? Then you would make me forfeit my head to the king.”

But Daniel said to the overseer whom the commander of the officials had appointed over Daniel, Hananiah, Mishael, and Azariah,

At the end of the time set by the king to bring all the young men in [before him], the commander of the officials presented them to Nebuchadnezzar.