Theme: How one is fitted for service to the Lord. 1. The Lord Reveals Himself- His Glory. vv. 1-4 (1) He graciously 'calls' Isaiah into worship- setting him in His presence (2) God reveals Himself to Isaiah His glory through vision and word - The vision of the Seraphim- their design and activity- The vision of the Seraphim- their design and activity - The 'preaching' of the Seraphim- The 'preaching' of the Seraphim 2. The Gospel is Ministered to the Soul. vv. 5-7 (1) Isaiah is gripped with the reality of his sin and need (2) God declares and ministers His grace and forgiveness - Gospel symbolism- Gospel symbolism - The word of assurance- The word of assurance 3. The Lord Calls and Commissions His Servant into Service. vv. 8-10 (1) The testimony of a messenger needed (2) Isaiah's response (3) Isaiah commissioned