There was also a maiden from Busiris Tripolitana, who had a terrible and very hideous disorder. For the runnings of her eyes, nose, and ears fell to … - Athanasius of Alexandria

For just as, though invisible, He is known through the works of creation; so, having become man, and being in the body unseen, it may be known from His works that He Who can do these is not man, but the Power and Word of God.

firstly, all being held to have died in Him, the law involving the ruin of men might be undone (inasmuch as its power was fully spent in the Lord's body, and had no longer holding-ground against men, his peers), and that, secondly, whereas men had turned toward corruption, He might turn them again toward incorruption, and quicken them from death by the appropriation of His body and by the grace of the Resurrection, banishing death from them like straw from the fire. 9.

The answer is this. The Lord did not come to make a display. He came to heal and to teach suffering men. For one who wanted to make a display the thing would have been just to appear and dazzle the beholders. But for Him Who came to heal and to teach the way was not merely to dwell here, but to put Himself at the disposal of those who needed Him, and to be manifested according as they could bear it, not vitiating the value of the Divine appearing by exceeding their capacity to receive it.