Jamieson, Fausset and Brown on Mark 9:21

21. And he asked his father, How long is it ago since this came unto him? And he said, Of a child, &c.--Having told briefly the affecting features of the case, the poor father, half dispirited by the failure of the disciples and the aggravated virulence of the malady itself in presence of their Master, yet encouraged too by what he had heard of Christ, by the severe rebuke He had given to His disciples for not having faith enough to cure the boy, and by the dignity with which He had ordered him to be brought to Him--in this mixed state of mind, he closes his description of the case with these touching words: