Led By Footsteps Unseen In times of trial and uncertainty, God's people rightfully experience anxiety and worry, just as the author of Psalm 77 did. Pastor David teaches the author of Psalm 77, inspired by the Holy Spirit, made known the worry, concern, and questions of the Providence of God. But we are encouraged, just as the author, to remember God's mighty works, and recognize His leadership and shepherding of His people, even through tumultuous times.