Casting away his garment - That is, his outer garment - the one that was thrown loosely over him. See the notes at Matthew 5:40. He threw it off, full of joy at the prospect of being healed, and that he might run without impediment to Jesus. This may be used to illustrate - though it had no such original reference - the manner in which a sinner should come to Jesus. He should throw away the garments of his own righteousness - he should rise speedily - should run with joy - should have full faith in the power of Jesus, and cast himself entirely upon his mercy.

And he, casting away his garment - He cast off his outward covering, a blanket, or loose piece of cloth, the usual upper garment of an Asiatic mendicant, which kept him from the inclemency of the weather, that he might have nothing to hinder him from getting speedily to Christ. If every penitent were as ready to throw aside his self-righteousness and sinful incumbrances, as this blind man was to throw aside his garment, we should have fewer delays in conversions than we now have; and all that have been convinced of sin would have been brought to the knowledge of the truth. The reader will at least pardon the introduction of the following anecdote, which may appear to some as illustrative of the doctrine grounded on this text.
A great revival of religion took place in some of the American States, about the year 1773, by the instrumentality of some itinerant preachers sent from England. Many, both whites and blacks, were brought to an acquaintance with God who bought them. Two of these, a white man and a negro, meeting together, began to speak concerning the goodness of God to their souls, (a custom which has ever been common among truly religious people). Among other things they were led to inquire how long each had known the salvation of God; and how long it was, after they were convinced of their sin and danger, before each got a satisfactory evidence of pardoning mercy. The white man said, "I was three months in deep distress of soul, before God spoke peace to my troubled, guilty conscience." "But it was only a fortnight," replied the negro, "from the time I first heard of Jesus, and felt that I was a sinner, till I received the knowledge of salvation by the remission of sins." "But what was the reason," said the white man, "that you found salvation sooner than I did?" "This is the reason," replied the other; "you white men have much clothing upon you, and when Christ calls, you cannot run to him; but we poor negroes have only this, (pointing to the mat or cloth which was tied round his waist), and when we hear the call, we throw it off instantly, and run to him."
Thus the poor son of Ham illustrated the text without intending it, as well as any doctor in the universe. People who have been educated in the principles of the Christian religion imagine themselves on this account Christians; and, when convinced of sin, they find great difficulty to come as mere sinners to God, to be saved only through the merits of Christ. Others, such as the negro in question, have nothing to plead but this, We have never heard of thee, and could not believe in thee of whom we had not heard; but this excuse will not avail now, as the true light is come - therefore they cast off this covering, and come to Jesus. See this miraculous cure explained at large on Matthew 20:29-34.

And he casting away his garment,.... His upper garment, and which no doubt was little worth; though this he did, that he might make the quicker dispatch to Christ:
rose; from off the bank, or ground, whereon he sat, in an instant: and "sprung up", as the Vulgate Latin, and Beza's ancient copy read, with great nimbleness, and in haste:
and came to Jesus; being led by the persons that were sent to call him. It may be observed from hence, that such who are effectually called by the grace of Christ, of which this man was an emblem, hate the garment spotted with the flesh; and: put off the old man, as to the former conversation, being called by an holy God, with an holy calling, to holiness in heart and life; and that by the Gospel, which teaches to deny sin, and live a holy conversation: and these also cast away the garment of their own righteousness, it being as fig leaves, a spider's web, filthy rags, and a beggarly robe, as this man's was; and come nakedly to Christ, for righteousness, and renounce their own in point of justification, that being an hinderance to their coming to him for his. The Gospel reveals a better righteousness to them than their own, more suitable to them, who are called from the dunghill, to sit among princes, and to inherit the throne of glory; and then such rise in the strength of grace, and come forth to Christ, for righteousness, peace, pardon, life, and salvation.

Casting away his garment - Through joy and eagerness.