The power of the Holy Ghost

A quote from John Wesley fitting for Pentecost:

The author of faith and salvation is God alone. It is he that works in us both to will and to do. He is the sole Giver of every good gift, and the sole Author of every good work. There is no more of power than merit in man; but as all merit is in the Son of God, in what he has done and suffered for us, so all power is in the Spirit of God. And therefore every man, in order to believe unto salvation, must receive the Holy Ghost. This is necessary to every Christian, not in order to his working miracles, but in order to faith, peace, joy, and love, — the ordinary fruits of the Spirit. (Taken from Part I of “A Father Appeal to Men of Reason and Religion.”)