“But you shall receive power when the Holy Spirit has come upon you; and you shall be witnesses to Me.”
We do have the power because when we committed our life to Christ the Holy Spirit came upon us. Now we just have to be witnesses unto Him. There is a power that we have inside us that can do some miraculous things. When you want a light to be turned on you just flip the switch right? There is actually a power source streaming electricity to that switch but you have to tap into the potential of it and turn it on. That is just like the power of God you have to tap into the power, by reading the word, attending a local church, serving, and live according to the word God has given us. Then we can prosper in the areas of life according to His purpose for us.