First Peter 1 described the glorious reality of our present and future as God’s children, by His grace and through our faith in Jesus. He called us a holy people redeemed by God for new purposes. That means believers must live differently than those in the world around us. In this chapter, Peter narrows down exactly what it means to lead a holy life, including doing battle with our own desire to sin. This also means suffering under human authorities, even unjust ones.  (BibleRef)