When preaching on “Salvation by Faith” Wesley answers the objection “If a man cannot be saved by all that he can do, this will drive men to despair.” To this Wesley replies:
True, to despair of being saved by their own works, their own merits, or righteousness. And so it ought; for none can trust in the merits of Christ, till he has utterly renounced his own. He that “goeth about to establish his own righteousness,” cannot receive the righteousness of God. The righteousness which is of faith cannot be given him while he trusteth in that which is of the law.
John Wesley, The Works of John Wesley, Vol. 5, p. 14, sermon entitled “Salvation by Faith”