The disciples longed for a kingdom where they could have power and control.  They had mental visions of what it would mean for them.  For Jesus it was the power of the Spirit accompanying kingdom proclamation.  It would not bring attention to them, but to Him.  This too we must learn.  It is not about advancing our cause and kingdom, but His.  It is not about our glory, but His.  “Thine is the kingdom and the power and the glory forever.”

“So when they had come together, they were asking Him, saying, “Lord, is it at this time You are restoring the kingdom to Israel?” He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority; but you will receive power when the Holy Spirit has come upon you; and you shall be My witnesses both in Jerusalem, and in all Judea and Samaria, and even to the remotest part of the earth” Acts 1:6-8 (NASB).