1 Thessalonians 5:8-9

But let us, who are of the day, be sober, putting on the breastplate of faith and love; and for a helmet, the hope of salvation.  For God hat not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ.

By the gracious salvation in Christ, we are separated from the dark as His Light shines through us.  This separation changes our destination from eternal condemnation to everlasting joy and peace.  This magnificent hope for all followers of Christ causes us to rejoice in the glorious splendor of His majesty.