At the age of 227, he became a grandfather to Jared's son Enoch (Genesis 5:18), who was born through Baraka, the daughter of Mahalalel's brother Râsûjâl (Jubilees 4:16).

And I recounted to him the whole vision which I had seen, and he said unto me: A terrible thing hast thou seen, my son, and of grave moment is thy dream-vision as to the secrets of all the sin of the earth: it must sink into the abyss and be destroyed with a great destruction.

After that I arose and prayed and implored and besought, and wrote down my prayer for the generations of the world...Roughly 300 years after this incident, Enoch was "taken up" by God (Genesis 5:23-24).

After Kenan's death, Mahalalel lived 55 more years and died at 895 (Genesis 5:17), placing him eighth in the records for the unusually long lifespans for the antediluvian patriarchs.

Islamic scholar Tabari tells that his story was also found in Persian literature and likens him with the Pishdadian king Hushang.

In the original 1835 edition of the Doctrine and Covenants, Mahalaleel was used as a code name for Algernon Sidney Gilbert.