'Age' in the Bible

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

But as for you, go your way to the end; then you will enter into rest and rise again for your allotted portion at the end of the age.”