Genesis 5:26
“And Methuselah lived after he begat Lamech seven hundred eighty and two years, and begat sons and daughters:”
KJV
Read in Genesis 5Meaning
Methuselah lives another 782 years after Lamech and fathers other sons and daughters who are not named individually.
Read carefully
As throughout Genesis 5, the genealogy's named sequence is selective and does not describe every branch of the family.
Reflection
The record keeps one ancestral line in focus while openly acknowledging lives and families outside that narrow sequence.