12 Beloved, do not be surprised at the fiery trial when it comes among you as a test, as if a strange thing is happening to you, 13 but in so far as you share in the suffering of Christ, rejoice, that in the glory of his revelation you may also rejoice and be glad. 14 If you are reproached in the name of Christ, you are blessed ones because the Spirit of Glory and The Spirit of God rests upon you. 1 Peter 4:12-19 (translated from the NA28 Greek text) (Read verses 15-19 on the site)
Peter wrote this as very real Christian persecution was taking place against the Church. This persecution was sponsored by the Roman government for the most part because Christians would not worship Caesar as their god. From this passage, we learn that when Christian persecution becomes a reality there are some imperatives that become necessary in order for us to become triumphant in and through it.