This sermon, drawn from Mark 10:28–45, centers on the radical redefinition of leadership as self-sacrificial service, rooted in Christ's example of humility and obedience. It confronts the disciples' ambition—seen in James and John's request for positions of honor—and exposes the danger of seeking status, power, or recognition in ministry. Instead, Jesus establishes that true greatness lies in becoming a servant (diakonos) and a slave (doulos), reflecting His own mission to serve and give His life as a ransom for many. The passage is deepened by references to 1 Peter 5 and Philippians 2, which call leaders to shepherd with humility, prioritize others' needs, and embody Christ's self-emptying love. Ultimately, the sermon calls all believers to align their hearts with Christ's pattern of sacrificial service, where glory is not claimed but given to God alone.