The chief of these means are prayer, whether in secret or with the great congregation; searching the Scriptures; (which implies reading, hearing, and meditating thereon;) and receiving the Lord's Supper, eating bread and drinking wine in remembrance of Him: And these we believe to be ordained of God, as the ordinary channels of conveying his grace to the souls of men.
http://staffordsgreenhouse.blogspot.com/2011/09/means-of-grace-john-wesley-...