Jesus assured us that signs would follow us if we believe. So why do so many believers come up short when they try to cast out devils? Why do they lay hands on the sick and the sick stay sick? Why do they long for miracle-working power but continue to struggle day in and day out with powerlessness?
It could be because they don't have the faith for it, but it could also be that they haven't paid the personal price to walk in God's power. Yes, we have authority over devils and sickness. Yes, we carry the kingdom of God with us wherever we go. Yes, miracles, signs and wonders happen according to God's will—not our own.
But I submit to you that there could be many things standing between you and the manifestation of His miracle-working power. That was the case in Voice of Healing evangelist A.A. Allen's life. Before Allen's miracle ministry took off, he was struggling with these questions: "Lord, why can't I heal the sick? Why can't I work miracles in Your name? Why do the signs not follow my ministry as they did that of Peter, John and Paul?" Good questions. They are questions every Christian should be asking.