Shelby G. Floyd
Shortly before the destruction of Jerusalem in A.D. 70, the apostle Peter wrote two letters to the Christians who were scattered abroad—the [diaspora] or dispersion. These people of God were being persecuted by the Roman government and by the ungodly Jews and Gentiles. The Christian people who were converted to Christ from among both the Jews and Gentiles had drastically changed their lifestyle. They no longer lived the life of a libertine. Those who were unconverted were astonished or shocked that they refused to live like they once had done. Peter reminded his readers that the worldly minded could not understand why Christian people now lived such a self-controlled life free from the profligate excesses that once characterized them:
1 Peter 4:4-5
In regard to these, they think it strange that you do not run with them in the same flood of dissipation, speaking evil of you. They will give an account to Him who is ready to judge the living and the dead.