2509 The earlier generations are grouped into three epochs from a spiritual point of view: (1) from Adam to Noah, (2) from Noah to Abraham, and (3) from Abraham to an indefinite time, say to the time when the Message of Allah was corrupted and the need arose for the final Messenger of Unity and Truth. Israel is another name for Jacob. 2510 The original is in the Aorist tense, implying that the "Posterity" alluded to includes not only the messengers but their worthy followers who are true to Allah and uphold His standard.