'Generation' in the Bible

For riches are not for ever: and doth the crown endure to every generation?

There is a generation that curseth their father, and doth not bless their mother.

There is a generation that are pure in their own eyes, and yet is not washed from their filthiness.

There is a generation, O how lofty are their eyes! and their eyelids are lifted up.

There is a generation, whose teeth are as swords, and their jaw teeth as knives, to devour the poor from off the earth, and the needy from among men.