Acts 1:8: you will receive power when the Holy Spirit comes on you, and you will be my witnesses in Jerusalem, in all Judea and Samaria, and to the ends of the earth.”

There are two Greek words in the New Testament, both which are rendered by our word “power.” The one refers to power in the sense of rule or authority and the other means ability, strength, or force. It is the latter of those that are used here. We are not to think that the Spirit came into existence here for the first time. It is possible for a power to always exist but for men to experience or take it at some given moment. For instance, men did not invent atomic power. It has always existed; but only in our time have men tapped into it.