IMHO , the proper use of church signs is to display God 's Word . Those who write a clever saying and then attach " God " to it , come very close to blasphemy to me . I would be very careful in attributing to God the words of men . I prefer the words of God .

Question: Why is the narrator upset at the sign ?
Answer: They find it a bit much .They find it pious .They find it too serious .They find it blasphemous .