This sermon explores the calling of Jesus's first disciples in John 1:35-51, emphasizing Jesus as the Lamb of God who takes away the sin of the world. The message highlights how John the Baptist pointed people to Jesus, initiating a chain reaction of evangelism that continues today. The sermon stresses that humanity's greatest need is not self-improvement or motivation, but the gospel of Jesus Christ. Through examining the encounters of Andrew, Peter, Philip, and Nathanael with Jesus, the pastor demonstrates how Christ seeks and saves the lost, gives new identities to believers, and calls His followers to share the good news. The sermon challenges believers to recognize they are part of an unbroken evangelistic chain stretching back to the apostles and to actively share the gospel with others, particularly family and friends, saying "come and see" as Philip did.