Doubt: 1: Does God exist? January 28, 2018 Marcus Nodder Doubt Psalms Audio Playerhttp://stpetersbarge.org/wp-content/uploads/2018/01/2018-01-28.mp300:0000:0000:00Use Up/Down Arrow keys to increase or decrease volume. Save Audio Save PDF Psalm 19Many Christians have a secret they dare not talk about. The secret is that they sometimes have doubts about they believe. The good news is that you are not alone. And doubt is treatable.