From a brutal and impoverished background in Reading, England, Tom Hamblin became a believer as a teenager before serving as a missionary in the Far East. He and his wife, Edna, spent more than a decade leading expeditions into the heart of Borneo.

Gradually they became convinced that the Lord was calling them to minister in the Arabian Peninsula: in particular, to carry in thousands of Bibles in Arabic, Farsi, and Urdu. They conveyed shipment after shipment into...