Reddit, we just learned we're fighting a spiritual entity but don't believe in God but need to believe in the Devil to beat it but we're scared it will jeopardize our Atheism with our peers if we do. Will we lose our Atheism if we temporarily believe in the Devil but not God?

Reddit, we just learned we're fighting a spiritual entity but don't believe in God but need to believe in the Devil to beat it but we're scared it will jeopardize our Atheism with our peers if we do. Will we lose our Atheism if we temporarily believe in the Devil but not God? (Source)