Genesis 11:17

And Eber lived after he begat Peleg four hundred and thirty years, and begat sons and daughters.

Eber lived 430 years after he fathered Peleg, fathering sons and daughters in those years, so that his complete lifetime was less than a thousand years. The record belongs to the genealogy from Shem to Abraham that places Shem's death 150 years after Abraham's birth and 50 years after Isaac's birth. Together with the long lives of Adam, Methuselah, Abraham and Isaac, those 430 years establish overlapping lifetimes in one direct chain from Adam through Methuselah and Shem to Abraham and Isaac to Jacob, by which all that God taught Adam could be communicated directly to the father of the tribes of Israel.

The record is counted among nine post-Flood generations whose average lifespan was 332 years. That post-Flood average of 332 years stands below an average of 912 years for nine generations before the Flood and above seventy years in Moses' time and about thirty-five years at the present time.

As part of that pattern the record illustrates the steady decrease in average human lifespan since the earliest generations to lifespans shorter than those of the patriarchs from Adam to Noah. As part of that decline it proves that humanity, created physically perfect, has greatly deteriorated in longevity.