Shared ground
Genesis 9:28–29 functions like a closing record. It says Noah lived 350 years after the flood, that his total lifespan came to 950 years, and then it ends with the simple statement that he died (Genesis 9:28–29). Whatever else readers think about the earlier flood story, these lines are presented as a straightforward summary of time and an end-of-life notice.
The flood is treated as the main time marker. The narrator measures Noah’s later life from that event, as if it reset the calendar for the next stage of human history.
Where interpretation differs
Some readers take the numbers (350, 950) as normal chronological reporting within the story’s world. Others think the lifespans are not meant to be read as ordinary years in the modern sense, but as meaningful figures that express Noah’s extraordinary place in early human history.
A smaller question is what exactly “after the flood” counts from: the start of the flooding, the end when the waters receded, or the point when Noah left the ark. The passage itself does not specify.
Why the disagreement exists
The disagreement mainly comes from how people read the long lifespans across Genesis 1–11. The text reports them as “years” and totals “all the days,” but the ages are far beyond present human experience. That pushes interpreters to ask whether the narrator intends a precise timeline, a stylized primeval timeline, or both.
What this passage clearly contributes
Explicitly, the passage contributes (1) a post-flood span for Noah, (2) a total lifespan figure that closes his biography, and (3) a firm narrative transition: Noah’s personal story is complete, and Genesis is ready to move to his descendants (see the shift that follows in Genesis 10:1). Theologically by inference, it reinforces that even the central survivor of the flood is mortal; the new start after judgment does not remove death from the human story.