The army wouldn’t give Tony Vaccaro a chance as a photographer, but that didn’t stop him. Between terrifying moments of dodging artillery shells and shrapnel that seemed to rain from the trees, he took pictures anyway. Then, as his friends slept, he used their helmets to mix the chemicals to develop his film. The nighttime forest became the darkroom in which Vaccaro created a timeless record of World War II’s battle of Hürtgen Forest.

King David lived through his share of battles and dark times. Second Samuel 22 says, “The Lord delivered [David] from the hand of all his enemies and from the hand of Saul” (v. 1). David used those experiences to produce a record of God’s faithfulness. He said, “Waves of death swirled about me; the torrents of destruction overwhelmed me” (v. 5).

David soon pivoted from desperation to hope. “In my distress I called to the Lord,” he recalled (v. 6). “From his temple he heard my voice” (v. 7). David made certain to praise God for His unfailing help. “The Lord turns my darkness into light,” he said. “With your help I can advance against a troop; with my God I can scale a wall” (vv. 29–30).

David turned his difficulties into an opportunity to tell the world about his faithful God. We can do the same. After all, we rely on the One who turns darkness into light.