Beloved, don't be astonished at the fiery trial which has come upon you, to test you, as though a strange thing happened to you.
do not be surprised -- Peter urges his readers to expect suffering since they are Christ-followers in a world that does not share their values (1 Peter 4:3-4). Likewise, Jesus said that suffering would come to His followers (Matthew 5:11-12; Matthew 1:1-25). - FSB