In the long-lived patriarchal age a generation seems to have been computed at 100 years, ( Genesis 15:16 ) comp. Genesis15:13 and Eccl 12:40 but subsequently the reckoning was the same which has been adopted by modern civilized nations, viz. from thirty to forty years ( Job 42:16 ) (Generation is also used to signify the men of an age or time, as contemporaries, ( Genesis 6:9 ; Isaiah 53:8 ) posterity , especially in legal formulae, ( Leviticus 3:17 ) etc.; fathers, or ancestors. ( Psalms 49:19 ) [E] indicates this entry was also found in Easton's Bible Dictionary
[J] indicates this entry was also found in Jack Van Impe's Prophecy Dictionary
Bibliography InformationSmith, William, Dr. "Entry for 'Generation'". "Smith's Bible Dictionary".