'Youths' in the Bible

And I beheld among the simple ones, I discerned among the youths, A young man void of understanding,

Even the youths shall faint and be weary, and the young men shall utterly fall:

youths in whom was no blemish, but well-favored, and skilful in all wisdom, and endued with knowledge, and understanding science, and such as had ability to stand in the king's palace; and that he should teach them the learning and the tongue of the Chaldeans.

And the prince of the eunuchs said unto Daniel, I fear my lord the king, who hath appointed your food and your drink: for why should he see your faces worse looking than the youths that are of your own age? so would ye endanger my head with the king.

Then let our countenances be looked upon before thee, and the countenance of the youths that eat of the king's dainties; and as thou seest, deal with thy servants.

And at the end of ten days their countenances appeared fairer, and they were fatter in flesh, than all the youths that did eat of the king's dainties.

Now as for these four youths, God gave them knowledge and skill in all learning and wisdom: and Daniel had understanding in all visions and dreams.