John the Baptist, imprisoned, sent disciples to ask if Jesus was truly the Messiah. Jesus responded by pointing to His works of healing and preaching, which fulfilled Isaiah's prophecies about the Messiah.

John's doubts arose from his focus on judgment, overlooking Messiah's role as a healer and preacher. Jesus is both a sanctuary for believers and a stumbling stone for unbelievers. The 'scandal of the cross' - salvation through Christ's death - appears foolish to some but is the core of Christian faith and the source of eternal life.