1 Peter gives persecuted Christians a powerful reminder that they have hope in the midst of their suffering. From the time of Abraham, God's people were a misunderstood minority and should expect to face hostility because they live under King Jesus' rule.
However, they are chosen by God, and their persecution is actually a gift because it offers them a chance to show others the surprising generosity and love of Jesus, which is fueled by hope in His return and victory over evil. Peter is hopeful that their imitation of Jesus and demonstration of His upside-down kingdom, which includes baptism and service, will give power to their words as they bear witness to God's mercy and show people the beautiful truth about Jesus.