“Many pray for the power of God. More every year. Those prayers sound powerful, sincere, godly, and without ulterior motive. Hidden under such prayer and fervor, however, are ambition, a craving for fame, the desire to be considered a spiritual giant. The person who prays such a prayer may not even know it, but dark motives and desires are in his heart…in your heart.
Even as people pray these prayers, they are hollow inside. There is little internal spiritual growth. Prayer for power is the quick and short way, circumnavigating internal growth. There is a vast difference between the outward clothing of the Spirit’s power and the inward filling of the Spirit’s life. In the first, despite the power, the hidden man of the heart may remain unchanged. In the latter, that monster is dealt with.
(Edwards, Gene. A Tale of Three Kings: A Study in Brokenness. 1980. Carol Stream, IL: Tyndale. 1992. 40-41.)