In the old testament, the stories were past down for generations until Moses. Moses took the stories and wrote them down and behold, the Torah was born. Thus was the culture in generations previous to Moses.
Many countries lack education, rendering the written word near useless to them. Audio bibles are the solution. Give the Light is an organization dedicated to spreading the word of God via audio bibles. If you’re interested in getting your ministry or yourself some audio bibles you can go to GiveTheLight.org for more information.