Son of Enoch and the longest lived of the patriarchs (Gen. 5: 21-27; Luke 3: 37). Some details of his life and ministry are given in latter-day revelation, from which we learn that he was a righteous man, a prophet, and an astronomer, and was left on the earth when the city of Enoch was taken, to provide a posterity through which Noah would come. See D&C 107: 50, 52, 53; Moses 8: 1-3.