The relationship between Man Friday and Robinson Crusoe in "Robinson Crusoe" is multifaceted, imbued with elements of master-slave dynamics and father-son intimacy. Crusoe, exerting superiority, names Friday, a common practice of masters in Defoe's era. However, Friday's servitude is seemingly rooted in gratitude, after being saved by Crusoe. Despite this, Crusoe regards Friday more as a loyal servant than an equal, often disregarding his ideas and contributions. The relationship thus oscillates between authoritarian and paternalistic tones.

In "Robinson Crusoe," good and evil are contrasted through Crusoe's perspective on his situation. He acknowledges the evil of being stranded on a desolate island but finds good in his survival, unlike his drowned shipmates. This demonstrates his ability to see a silver lining, using the positive aspect to strengthen his resolve to endure and survive.

The journal itself helps Crusoe to keep track of time and days on the island, but it also allows him to escape from his loneliness by writing about things that might interest others. He writes about events in order to help himself feel less alone.

Robinson Crusoe's father views his "middle state" as a position of ideal contentment, avoiding the extremes of poverty and wealth. He believes that Crusoe's financial and social standing offers the most happiness, free from the hardships faced by the poor and the pride and envy of the rich. He argues that pursuing a sailing life, typical of those with "desperate fortunes" seeking improvement, is unnecessary and foolish given Crusoe's fortunate circumstances.

Robinson Crusoe refers to himself as "king" and "lord" on the island because he is the sole human inhabitant, allowing him to do as he pleases and control all resources. He views the animals he rescued as his subjects, creating a semblance of English societal structure and rituals. This self-imposed hierarchy provides him comfort and a sense of power, echoing the societal norms from his homeland.

The Bible verse "All these things have not brought you to repentance" in Robinson Crusoe highlights Crusoe's realization of his spiritual shortcomings and ingratitude. During his isolation, he acknowledges that despite God's providence in his survival, he has not repented for his past sins. This revelation marks the beginning of his religious conversion, as he understands the need for redemption and the significance of God's role in his life.

In Robinson Crusoe, Crusoe comes to understand that God caused him to be marooned on the island. His illness causes him to call out to God for assistance. When his illness subsides, Crusoe realizes that God has heard his prayers, and he repents of his past life.

Portraying Robinson Crusoe as middle-class emphasizes his need to forge his own path, unlike the upper-class who inherit wealth and status. This background instills in him commercial values and the drive to claim his place in the world. Consequently, Crusoe's involvement in the slave trade reflects his prioritization of profit over morality, as he is not bound by the ethical standards of the upper class, focusing instead on entrepreneurial gain.

Finding corn and rice initially strengthens Crusoe's religious feelings, as he perceives the plants' growth in an unsuitable climate as a miraculous sign of divine providence. However, upon recalling that he had previously scattered seeds, Crusoe's sense of a miracle diminishes, leading him to attribute the growth to chance rather than God's intervention. Despite this realization, he acknowledges that he should remain thankful for the providential support, even if not miraculous.

Robinson Crusoe serves as an allegory of crime, punishment, and redemption through his journey. His "crime" is defying his parents' wishes and God's ordained path by going to sea. The shipwreck symbolizes his punishment, isolating him as a consequence. Crusoe's redemption unfolds as he recognizes divine providence in his survival, deepens his faith, and appreciates his resources and companionship on the island. His ultimate redemption is achieved upon his rescue and return to Europe.