If you are insulted for the name of Christ, blessed are you; because the Spirit of glory and of God rests on you. On their part he is blasphemed, but on your part he is glorified.
Their curses become blessings because the Holy Spirit, who is the Spirit of glory, already indwells us. The "and" here (Gr. kai) may be ascensive, meaning "even." Peter’s thought was that the indwelling Holy Spirit is already part of our glorification, the firstfruits of our inheritance. As the Israelites enjoyed the presence of God in the fiery pillar even during their wilderness testing, so we enjoy His presence during our wilderness experience.