In the book of Moses, among the earliest things the people of God are shown doing is keeping a record. A book of remembrance was written, and children were taught to read and write so the record would hold. Before temples, before nations, there was a written memory. The science of memory shows why this came first, and why it had to.

Memory researcher Charan Ranganath, in his 2024 book Why We Remember, explains that human memory, for all its power, cannot by itself carry a people’s knowledge across the generations. A single mind keeps a selection and loses much of it, and what passes by word of mouth drifts and thins with each retelling. To hold knowledge steady over long stretches of time, cultures invent ways to store memory outside the body, and writing is the most powerful of them. A written record fixes words in a durable form that later generations can return to unchanged, holding a shared memory in place far longer than any chain of living memories could.

Writing, in other words, is a memory technology, perhaps the most consequential one ever devised. It lets a community remember together across centuries, anchoring its identity and its covenants in a text that outlives everyone who first received them. A people with a book can stay itself in a way a people relying on memory alone cannot.

Every lasting civilization has found this out. The cultures that endured learned to write, fixing their laws, their stories, and their sacred things in a form that could outlive any single memory. A people without a record is a people forever starting over, while a people with one can stand on the accumulated memory of everyone who came before.