King Benjamin told his sons a sobering thing about the plates their family had guarded at such cost. Without that record, he said, even their own fathers would have forgotten God. The science of memory explains why he was right, and why a people who wanted to keep the covenant had to keep it in writing.

Dr. Charan Ranganath, a scientist of memory, explains in his 2024 book Why We Remember that individual memory is far more limited and fragile than we like to think. A single mind holds a selection, reshapes it over time, and loses much of it, and when that mind dies, whatever lived only inside it is gone. Across generations the problem compounds. A story passed mouth to mouth drifts, thins, and bends with each retelling, until a few lifetimes can carry a people a long way from where they began. This is why human cultures externalize memory, setting it down in durable form so it can outlast the people who first held it.

Writing is the great memory technology. A record fixes words outside any one mind, where they can be returned to unchanged by people who never met the one who wrote them. It lets a great-grandchild read the exact account a great-grandparent set down, and so it holds a shared memory steady across the gulf of years that erodes everything carried in living heads alone.

We lean on this constantly without noticing. A grocery list spares the memory the work of holding ten items. A calendar holds an appointment so the mind can release it. Scripture is the same kind of tool raised to its highest use, a shared record that remembers the covenant on behalf of a whole people, so that no single fallible memory has to carry it alone.