When Methuselah was 187 years old, he had a son named Lamech.
Enoch had a son named Irad, Irad had a son named Mehujael, Mehujael had a son named Methushael, and Methushael had a son named Lamech.
Enoch walked with God; one day Enoch could not be found, because God took him.
After Lamech was born, Methuselah lived 782 years and had other sons and daughters.