'Generation' in the Bible

How great are His miracles,and how mighty His wonders!His kingdom is an eternal kingdom,and His dominion is from generation to generation.

But at the end of those days, I, Nebuchadnezzar, looked up to heaven, and my sanity returned to me. Then I praised the Most High and honored and glorified Him who lives forever:For His dominion is an everlasting dominion,and His kingdom is from generation to generation.