Martin Luther’s Bondage of the Will is a theological treatise written in 1525 in response to the teachings of Erasmus of Rotterdam. In it, Luther upholds the doctrine of predestination, arguing that human beings have no free will and that the only way to attain salvation is through faith alone. He rejects Erasmus’ idea of free will, claiming that if this were true, it would undermine God’s sovereignty and make Him no longer the omnipotent ruler of the universe. Luther suggests that if humans had free will, then they would be able to choose between good and evil, and this would put them in the same position as God. He also argues that human nature is corrupted by sin, and that only God is capable of freeing them from it. In addition, Luther insists that salvation is only possible through faith, not through works or human effort. Lastly, he states that God’s grace is given freely to all who accept it and that it is received through faith alone. Through this book, Luther sought to emphasize the importance of faith and to affirm the doctrine of predestination.