Generation. In the long-lived patriarchal age a generation seems to have been computed at 100 years, Gen. 15:16, comp. 13, and Ex. 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, Gen. 6:9; Isa. 53:8; posterity, especially in legal formulæ, Lev. 3:17, etc.; fathers, or ancestors. Ps. 49:19.