God´s power and authority are called in Greek dynamis and exousia (= power and authority (autores)).
An author means the one who”created” the book, i.e. We are closing the prayer as we began: God as creator.
You can say to this mountain: move from here to there, and it will move. Only God and faith can move mountains. This means than the believer has been given dynamis and exousia. It happen through baptism. Jesus says:
MT, 28, 18: All authority in heaven and on earth has been given to me…. baptizing them in the name of the Father and the Son and the Holy Spirit. (Trinity)
It is our responsibility and task as faithful believers, to spread the gospel and share it. So that they may have what we have received from Jesus. This is our mission, each separately and together as church.