John Chrysostom
Christ then did not reveal Himself to His disciples until they cried out; for the more intense their fear, the more did they rejoice in His presence; whence it follows, And immediately Jesus spoke to them, saying, Be of good cheer, it is J, be not afraid. This speech took away their fear, and prepared their confidence.
Desiring to occasion a diligent examination of the things that had been done, He commanded those who had beheld the foregoing sign to be separated from Him; for even if He had continued present it would have been said that He had wrought the miracle fantastically, and not in verity; but it would never be urged against Him that He had done it in His absence; and therefore it is said, And straightway Jesus compelled his disciples to get into a ship, and to go before him to the other side, while he sent the multitudes away.
It should be observed, that when the Lord works a great miracle, He sends the multitudes away, teaching us thereby never to pursue the praise of the multitude, nor to attract them to us. Further, He teaches us that we should not be ever mixed with crowds, nor yet always shunning them; but that both may be done with profit; whence it follows, And when he had sent the multitude away, he went up into a mountain apart to pray; shewing us that solitude is good, when we have need to pray to God. For this also He goes into the desert, and there spends the night in prayer, to teach us that for prayer we should seek stillness both in time and place.
Again, the disciples suffer shipwreck, as they had done before; but then they had Him in the boat, but now they are alone. Thus gradually He leads them to higher things, and instructs them to endure all manfully.
But He suffers them to be tossed the whole night, exciting their hearts by fear, and inspiring them with greater desire and more lasting recollection of Him; for this reason He did not stand by them immediately, but as it follows, in the fourth watch of the night he came to them walking upon the sea.
Teaching them not to seek a speedy riddance of coming evil, but to bear manfully such things as befal them. But when they thought that they were delivered, then was their fear increased, whence it follows, And seeing him walking upon the sea, they were troubled, saying, It is a vision, and through fear they cried out. For this the Lord ever does; when He is to rescue from any evil, He brings in things terrible and difficult. For since it is impossible that our temptation should continue a long time, when the warfare of the righteous is to be finished, then He increases their conflicts, desiring to make greater gain of them; which He did also in Abraham, making his hot conflict his trial of the loss of his son.
See how great his warmth, how great his faith. He said not, Pray and entreat for me; but Bid me; he believes not only that Christ can Himself walk on the sea, but that He can lead others also thereon; also he wishes to come to Him speedily, and this, so great a thing, he asks not from ostentation, but from love. For he said not, Bid me walk upon the waters, but, Bid me come unto thee. And it seems that having shewn in the first miracle that He has power over the sea, He now leads them to a more powerful sign; He saith unto him, Come. And Peter, going forth of the boat, walked on the sea, that he might go to Jesus.
Peter overcame that which was greater, the waves, namely, of the sea, but is troubled by the lesser, the blowing wind, for it follows, But seeing the wind boisterous, he was afraid. Such is human nature, in great trials ofttimes holding itself aright, and in lesser falling into fault. This fear of Peter shewed the difference between Master and disciple, and thereby appeased the other disciples. For if they had indignation when the two brothers prayed to sit on the right and left hand, much more had they now. For they were not yet made spiritual; afterwards when they had been made spiritual, they every where yield the first place to Peter, and appoint him to lead in harangues to the people.
He bade not the winds to cease, but stretched forth His hand and caught him, because his faith was required. For when our own means fail, then those which are of God stand. Then to shew that not the strength of the tempest, but the smallness of his faith worked the danger, He saith unto him, O thou of little faith, why didst thou doubt? which shews that not even the wind would have been able to hurt him, if his faith had been firm. But as the mother bears on her wings and brings back to the nest her chick which has left the nest before its time and has fallen, so did Christ. And when they were come into the boat, the wind ceased. Then they that were in the boat came and worshipped him, saying, Truly thou art the Son of God.
Observe how He leads all gradually to that which is above them; He had before rebuked the sea, now He shews forth His power yet more by walking upon the sea, by bidding another to do the same, and by saving him in his peril; therefore they said unto Him, Truly thou art the Son of God, which they had not said above.