The Christians were a pitiably small remnant, persecuted by mighty foes. To all outward appearance their situation was hopeless. But it is only as Christ is seen for what He really is that anything else can be seen in its true perspective. So for these persecuted ones it was important that first of all the glory and the majesty of the risen Lord be brought out.
– Leon Morris on Revelation 1:12-20 in The Revelation of St. John (TNCT)