'Generation' in the Bible

How great are his signs! How powerful are his wonders! His kingdom is an eternal kingdom, and his dominion lasts from generation to generation.

"When that period of time was over, I, Nebuchadnezzar, lifted my eyes to heaven and my sanity returned to me. I blessed the Most High, praising and honoring the one who lives forever: For his sovereignty is eternal, and his kingdom continues from generation to generation.