Last Sunday, we saw Jesus heal a boy possessed by an unclean spirit in Mark 9:14-29 after the disciples failed to cast it out. The boy’s father cried out honestly, "I believe; help my unbelief," acknowledging his faith mixed with doubt, and Jesus taught the disciples that their failure stemmed from not depending on Him through prayer — they were trying to serve in their own strength. Jesus had previously spoken of His death and resurrection and told the disciples that they must deny themselves and take up their cross (8:31-38). In Mark 9:1-12, the Father told three disciples to “Listen to Him.” Yet they have struggled with Jesus’ teaching about His death. This Sunday, we continue in Mark 9:30-41 as Jesus heads toward Jerusalem. Coming off the disciples’ failure, Jesus privately teaches the disciples again about His betrayal, suffering, death, and resurrection — referring to Himself as the Son of Man from Daniel 7. Still, they don’t understand because they’re preoccupied with their own greatness, arguing about who’s the greatest. These disciples are chasing status, control, and glory, like we often do today with our idols of control, comfort, and significance. Jesus models true greatness through His sacrifice, being delivered by the Father to die for our sins, as it says in Isaiah 53, but the disciples miss it, letting their preconceptions cloud His words. Misunderstanding Jesus and the gospel distorts how disciples understand what following Him means. When we embrace our worth and identity in Jesus’ death and resurrection, we find an unsurpassed greatness, which is then expressed in humble service — being last and the servant of all. Jesus illustrates this by embracing a child, a picture of the insignificant with no status, and says receiving such a one in His name is receiving Him and the Father. It’s not about worldly gain but denying oneself from the strength of our gospel identity in Christ. Then, when John complains about an outsider casting out demons in Jesus’ name — something they couldn’t do in the previous passage — Jesus says don’t stop him. Rather than assume their service is greater than others, they should rejoice when Christ is glorified, no matter who does it, because anyone not against us is for us. Even small acts like giving a cup of water in His name will be rewarded. True greatness comes from the gospel and is expressed as His people serve for His glory.
I. True Greatness Is Modeled In Jesus’ Sacrifice (v. 30-32)
II. True Greatness Is Expressed in Humble Service (v. 33-37)
III. True Greatness Prioritizes Christ’s Glory (v. 38-41)