The fact that Jesus Christ was crucified, placed in a tomb dead, only to raise up three days later and leave the tomb alive is an established fact of history, Scripture and logic. There is power in the preaching it.
Jesus addressed self-seeking in his disciples when John recalled a related failure. Jesus made it clear that those who believe in Him are on His side but those who harm His people risk endless torment after this life.
Christ intended to again educate His apostles about His betrayal, death and resurrection. But popular teachings about Messiah had drowned out Scripture’s facts about His suffering, leaving them closed minded.
Jesus and three of His disciples return from a glorious event on a mountain, to an awaiting problem in the valley. Need, opposition, failure, victory and education are all bundled into the apostles present experience.