How did Jesus used a little child to show the futility of what argument the disciples had?

Jesus used a little child to illustrate the futility of the disciples' argument about who was the greatest among them. By bringing a child into their midst, He emphasized the importance of humility and the need to receive the Kingdom of God with childlike faith, rather than seeking status or power. This act highlighted that true greatness in His kingdom comes from serving others and embracing a simple, trusting relationship with God, rather than from human accolades or competition.