The first 25 chapters of the book chronicle the experiences of the first generation of Israel in the wilderness, while the rest of the book describes the experiences of the second generation.
Sura za kwanza 25 za kitabu zinatarihi uzoefu wa kizazi cha kwanza cha Israeli katika jangwa, huku sehemu iliyobaki ya kitabu inaelezea uzoefu wa kizazi cha pili.