Round the Bend by Nevil Shute
When Tom Cutter hires Constantine Shaklin as an engineer in his air freight business, he little realises the extraordinary gifts of his new recruit. Shaklin possesses a religious power which inspires everyone he meets to a new faith and hope for humanity. As Cutter's business grows across Asia, so does Shaklin's fame, until he is widely regarded as a unifying deity. Though he struggles to believe Shaklin is indeed divine, the friendship will transform Cutter's life.