Day 1 of praying and meditating on Psalm 91 during this first week of Lent, chanted using the KJV and Gregorian Chant Tone VIII, followed by devotional excerpts from St. Augustine and Martin Luther on the first part of the psalm.Traditionally used at Compline (the Close of Day prayer office), Psalm 91 is a psalm of protection that also features prominently in the historic propers for the First Sunday in Lent (Invocavit), the devil even quoting it to tempt Jesus to throw Himself down from the pinnacle of the temple.