For God called you to do good, even if it means suffering, just as Christ suffered for you. He is your example, and you must follow in his steps (1 Peter 2:21).
The cross reminds believers that following Jesus includes suffering. The New Testament bears witness to that reality. The apostles and early believers suffered for their faith in Jesus. Human history and modern day events bear witness as well. Following Jesus leads to suffering in some way. Sometimes believers suffer physical persecution, sometimes social rejection, sometimes unjust treatment, sometimes economic hardship. What should believers do in the face of suffering? Peter, one of the Twelve who suffered for Jesus – gives us both his example and some clear answers.