Genesis 5:13

Kenan lived eight hundred and forty years after the birth of Mahalalel and had other sons and daughters.

Treasury of Scripture Knowledge

Summary

And Cainan lived after he begat Mahalaleel eight hundred and forty years, and begat sons and daughters:

And begat

Bible References

And begat

Genesis 5:4
After he became the father of Seth, Adam lived eight hundred years and had other sons and daughters.