50 Moreover, by His own power He not only performed those miraculous deeds which have been detailed by us in summary, and not as the importance of the matter demanded; but, what was more sublime, He has permitted many others to attempt them, and to perform them by the use of His name. For when He foresaw that you were to be the detractors of His deeds and of His divine work, ill order that no lurking suspicion might remain of His having lavished these gifts and bounties by magic arts, from the immense multitude of people, which with admiring wonder strove to gain His favour, He chose fishermen, artisans, rustics, and unskilled persons of a similar kind, that they being sent through various nations should perform all those miracles without any deceit and without any material aids.
By a word He assuaged the racking pains of the aching members; and by a word they checked the writhings of maddening sufferings. By one command He drove demons from the body, and restored their senses to the lifeless; they, too, by no different command, restored to health and to soundness of mind those labouring under the inflictions of these demons. By the application of His hand He removed the marks of leprosy; they, too, restored to the body its natural skin by a touch not dissimilar.
He ordered the dropsical and swollen flesh to recover its natural dryness; and His servants in the same manner stayed the wandering waters, and ordered them to glide through their own channels, avoiding injury to the frame. Sores of immense size, refusing to admit of healing, He restrained from further feeding on the flesh, by the interposition of one word; and they in like manner, by restricting its ravages, compelled the obstinate and merciless cancer to confine itself to a scar.
To the lame He gave the power of walking, to the dark eyes sight, the dead He recalled to life; and not less surely did they, too, relax the tightened nerves, fill the eyes with light already lost, and order the dead to return from the tombs, reversing the ceremonies of the funeral rites. Nor was anything calling forth the bewildered admiration of all done by Him, which He did not freely allow, to be performed by those humble and rustic men, and which He did not put in their power.
Source: Against the Heathen (New Advent)