Jesus explained to the crowd and his disciples what is required if anyone wants to be Jesus’ disciple.

Mark 8:34—9:1

34 Then he summoned the crowd along with his disciples so that they might listen to him. He told them, “If any one of you wants to be my disciple, you must not do only what you yourself want to do. Specifically, you must be willing to allow people to hurt you and to disgrace you. That is what they do to criminals who are forced to carry crosses [MET] to the places where they will be crucified. That is what anyone who wants to be my disciple must do. 35 You must do that, because those who try to save their lives by denying that they belong to me when people want to kill them for believing in me will not live eternally, but those who are killed because of being my disciples and because of telling others my good message will live forever with me. 36 People might get everything they want in this world, but ◄they are really gaining nothing if they do not get eternal life because they do not become my disciples!/what will they gain if they do not get eternal life because they do not become my disciples?► [RHQ] 37 ◄Think carefully about the fact that there is absolutely nothing that people can give to God that would enable them to gain eternal life!/Is there anything that a person can give to God in order to gain eternal life?► [RHQ] 38 And think about this: Those who refuse to say that they belong to me and who reject what I say in these days when many people have turned away from God and are very sinful, I, the one who came from heaven, will also refuse to say that they belong to me when I come back with the holy angels and have the glorious brightness that my Father has!”

9 He also said to his disciples, “Listen carefully! Some of you who are here now will see God ruling powerfully in many ways. You will see it before you die!”