Faith is a central theme throughout The Swiss Family Robinson, with Christianity providing a source of mental, spiritual, and intellectual fortitude for the family as they survive on a deserted island. Father often leads the family in prayer, and they maintain the Sabbath as a day of rest and reflection. Using biblical parables, sermons, and scripture, the father imparts important life lessons upon his sons while also helping them retain the faith they need to thrive in their oftentimes trying circumstances. Furthermore, upholding biblical customs and teachings allows the family to retain a sense of civilized structure in their otherwise wild surroundings.

The notion of providence, or divine guidance, also plays an important role in shaping the family’s relationship with the island. Rather than viewing their circumstances as a trial or test of faith, they instead view the island as a gift from God. Although there is a certain level of fear and anxiety in their efforts to tame the island, the family generally approaches each new challenge with the belief that God will provide them with what they need. From there, they simply need to apply their own effort and ingenuity in order to thrive.