What is the turning point in the gospel of Mark from a more positive public ministry to a focus on Jesus death?

The turning point in the Gospel of Mark occurs in Mark 8:27-33, when Peter acknowledges Jesus as the Messiah. Following this confession, Jesus begins to predict his suffering, rejection, and death, shifting the focus of the narrative from his public ministry and miracles to the impending passion. This transition highlights the conflicting expectations of a triumphant Messiah versus the reality of Jesus' sacrificial mission. The subsequent chapters emphasize the inevitability of his suffering and the significance of the cross.