'Generation' in the Bible

"How great are his signs! How mighty are his wonders! His kingdom will last forever, and his authority continues from one generation to the next."

But at the end of the appointed time I, Nebuchadnezzar, looked up toward heaven, and my sanity returned to me. I extolled the Most High, and I praised and glorified the one who lives forever. For his authority is an everlasting authority, and his kingdom extends from one generation to the next.