Key Texts:Colossians 1:15–20; Acts 4:12; 1 Timothy 2:5 Theme:Christ alone is the sufficient and supreme Mediator between God and man. He is the heart of the Gospel. 1. Christ Alone as the Image of the Invisible God (Col. 1:15) 1.1 The Perfect Revelation of God     Christ is not merely a reflection of divine glory;     He…