What is the most popular 'song' of all time? Celebrating the beloved 23rd Psalm of David---and energized by the inspiring writings of author Max Lucado---top Christian and country artists perform 'In Green Pastures' (Jaci Velasquez), 'Mountain of God' (Third Day's Mac Powell), 'Gentle Shepherd' (Amy Grant), 'Let It Flow' (Russ Taff), and more.
