Agatha Christie said this quote

She looked at them with shining eyes. Her chin went up. She said: You regard it as impossible that a sinner should be struck down by the wrath of God! I do not! The judge stroked his chin. He murmured in a slightly ironic voice: My dear lady, in my experience of ill-doing, Providence leaves the work of conviction and chastisement to us mortals-and the process is often fraught with difficulties. There are no short cuts.