John Wesley on Acts 9:9

And he was three days - An important season! So long he seems to have been in the pangs of the new birth. Without sight - By scales growing over his eyes, to intimate to him the blindness of the state he had been in, to impress him with a deeper sense of the almighty power of Christ, and to turn his thoughts inward, while he was less capable of conversing with outward objects. This was likewise a manifest token to others, of what had happened to him in his journey, and ought to have humbled and convinced those bigoted Jews, to whom he had been sent from the sanhedrim.