And have made us unto our God a kingdom and priests: and we shall reign on the earth. -Revelation 5:10

…some persons will say, “I wish you would prove what you affirm, when you say that saints are kings; for, if we were kings, we should never have any sorrows; kings are never poor as we are, and never suffer as we do.” Who told you so? You say if you are kings, you would live at ease. Do not kings ever suffer? Was not David an anointed king? and was he not hunted like a partridge on the mountains? Did not the king himself pass over the brook Kedron, and all his people weeping as he went, when his son Absalom pursued him? And was he not a monarch when he slept on the cold ground, with no couch save the damp heather? O yes, kings have their sorrows-crowned heads have their afflictions.

“Uneasy lies the head that wears a crown.”

Do not expect that because you are a king, you are to have no sorrows. “It is not for kings, O Lemuel, it is not for kings to drink wine; nor for princes strong drink.” And it is often so. The saints get but little wine here. It is not for kings to drink the wine of pleasure; it is not for kings to have much of the intoxicating drink and the surfeits of this world’s delight. They shall have joy enough up yonder, when they shall drink it new in their Father’s kingdom. Poor saint! do dwell on this. Thou art a king! I beseech thee, let it not go away from thy mind; but in the midst of thy tribulation, still rejoice in it. If thou hast to go through the dark tunnel of infamy, for Christ’s name; if thou art ridiculed and reviled, still rejoice in the fact, “I am a king, and all the dominions of the earth shall be mine!” ~ C.H. Spurgeon

http://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0010.cfm