'Young' in the Bible

I raised up some of your sons for prophets, and some of your young men for Nazirites. Isn't this true, you children of Israel?" says Yahweh.

Will a lion roar in the thicket, when he has no prey? Does a young lion cry out of his den, if he has caught nothing?

"I sent plagues among you like I did Egypt. I have slain your young men with the sword, and have carried away your horses; and I filled your nostrils with the stench of your camp, yet you haven't returned to me," says Yahweh.

In that day the beautiful virgins and the young men will faint for thirst.