Matthew 16:21
From that time Jesus began to show his disciples that he must go to Jerusalem and suffer many things from the elders and chief priests and scribes, and be killed, and on the third day be raised. The first explicit passion prediction in Matthew's Gospel: from that time — the hinge moment of the Caesarea Philippi confession — Jesus begins to teach the disciples about the suffering, death, and resurrection that await him in Jerusalem. The must communicates the divine necessity of the suffering: the cross is not a tragedy that befalls Jesus but the path he has come to walk.