And he took him aside from the multitude - Why this was done we have no means of information. It might have been to conceal from the multitude everything respecting the “manner” of cure, in order that none might attempt to cure in a similar way.
And he put his fingers into his ears ... - Why this was done it has been found exceedingly difficult to explain. Jesus had power at once to open his ears and loose his tongue, but for some cause he chose to accompany it with a sign. This was intended, probably, simply to denote that the power of healing came from him; to satisfy the man by the touch that he had this power, and that it could come from no other quarter. Our Saviour often used signs in this way to denote his power to heal. See Mark 8:23; John 9:6.