בראשית, פרק י״א, פסוק י״ח

Tracing a family lineage involves a steady rhythm of names and milestones, marking the passage of time from one father to the next. As the record of the generations moves forward, it reaches the fifth link in this continuous family chain.

At this stage, Peleg becomes a father at the age of thirty. This specific age is presented as a basic and precise number. Rather than being an isolated detail, this exact figure follows a clear, repeating pattern that was already established in the earlier stages of the generational records [קאסוטו].