Repent is the first word Jesus is recorded as saying in his public ministry, this shows how important and central repentance is to the Gospel. All things are full of weariness; a man cannot utter it; the eye is not satisfied with seeing, nor the ear filled with hearing. Ecclesiastes 1:8 (ESV) God is most glorified in us when we are most satisfied in Him. We can only find lasting satisfaction in God. The Fall of Satan and the Victory of