This battle psalm, memorably quoted by Private Jackson (Barry Pepper) while firing from his sniper’s nest in the church tower in “Saving Private Ryan,” expresses the warrior’s confidence in his ultimate refuge. His true shield is not his military training, but his divine Trainer; his true fortress is not the stone walls around him, but the Lord his rock. Confident in his divine refuge, the warrior nevertheless marvels that God cares as He does: why does God even notice mortals whose lives are like a mere breath or a passing shadow? (David undoubtedly thought of fallen comrades whose lives were unduly cut short.) Yet, as Jesus said, not even a sparrow falls to the ground without the Father’s permission, and “you are more valuable than many sparrows” (Matthew 10.29-31).