What proof does Cheever give that John Proctor isn't a God-loving person?

Cheever's claim that John Proctor is not a God-loving person is rooted in his association with the Devil. In the context of "The Crucible," the community is gripped by fear of witchcraft and the idea that any deviation from strict religious norms could be interpreted as alignment with evil forces. Cheever's role is to assert the presence of sin and corruption, and by linking Proctor to the concept of Satan, he undermines Proctor's character and faith in the eyes of the court and the community.

The accusation reflects the play's larger themes of hysteria and the danger of a theocratic society where reputation and perceived morality can dictate one's fate. This atmosphere allows Cheever and others to manipulate evidence and perceptions to serve their own agendas. Proctor's struggle with sin, notably his past infidelity, adds layers to his character but does not detract from Cheever's assertion that his actions and choices mark him as unworthy of God’s favor.