在二戰期間，雖然美軍拒絕托尼．瓦卡羅（Tony Vaccaro）當戰地攝影師，但卻不能阻止他。當德軍與美軍在黑暗的許特根森林激烈戰鬥時，身為步兵的他在槍林彈雨中依舊拍攝許多照片。入夜之後，戰友們都休息睡覺時，他就用他們的頭盔調和化學藥劑沖洗底片。夜間的森林成為瓦卡羅的暗房，讓他為這場艱辛漫長的許特根森林戰役留下永恆的記錄。

大衛王經歷了多場戰役，也走過人生低谷。撒母耳記下22章記載：「耶和華救大衛脫離一切仇敵和掃羅之手」（1節）。大衛記錄這些經歷來紀念上帝的信實，正如他說：「曾有死亡的波浪環繞我，匪類的急流使我驚懼。」（5節）

但是大衛很快就從絕望轉為盼望。大衛回憶說：「我在急難中求告耶和華，⋯⋯祂從殿中聽了我的聲音」（7節）。大衛定意要讚美上帝，因為上帝是他隨時的幫助：「耶和華必照明我的黑暗。⋯⋯我藉著祢衝入敵軍，藉著我的上帝跳過牆垣。」（29-30節）

大衛將自身的困境轉為機會，向人介紹他信實的上帝。你我也能像大衛一樣！畢竟，我們都是倚靠那位能將黑夜變為光明的上帝。

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. “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.