At another meeting later in the month, someone asked about the long lives of some people in the Bible. ‘Abdu’l-Bahá explained that the long lives mentioned in certain books and narratives have a different basis. For instance, it was the custom in former times to mention the dynasty or family by the name of one person only. However, the people in the following ages thought that the length of time that a family survived was the length of the life of the family’s founder.
(Earl Redman, ‘Abdu’l-Bahá in Their Midst, p. 150)