'Generation' in the Bible

How great are his signs! and how mighty are his wonders! his kingdom is an everlasting kingdom, and his dominion is from generation to generation.

And at the end of the days I, Nebuchadnezzar, lifted up mine eyes unto heaven, and mine understanding returned unto me, and I blessed the Most High, and I praised and honored him that liveth for ever; for his dominion is an everlasting dominion, and his kingdom from generation to generation.