From the Fathers

Ninth Sunday After Pentecost

For what purpose does He go up into the mountain? To teach us, that loneliness and retirement is good, when we are to pray to God. With this view, you see, He is continually withdrawing into the wilderness, and there often spends the whole night in prayer, teaching us earnestly to seek such quietness in our prayers, as the time and place may confer. For the wilderness is the mother of quiet; it is a calm and a harbor, delivering us from all turmoils.
He Himself then went up there with this object, but the disciples are tossed with the waves again, and undergo a storm, equal even to the former. But whereas before they had Him in the ship when this befell them, now they were alone bry themselves. Thus gently and by degrees He excites and urges them on for the better, even to the bearing all nobly. Accordingly we see, that when they were first near that danger, He was present, though asleep, so as readily to give them relief; but now leading them to a greater degree of endurance, He does not even this, but departs, and in mid sea permits the storm to arise, so that they might not so much as look for a hope of preservation from any quarter; and He lets them be tempest-tossed all the night, thoroughly to awaken, as I suppose, their hardened heart.
For such is the nature of the fear, which the time concurs with the rough weather in producing. And together with the compunction, He cast them also into a greater longing for Himself, and a continual remembrance of Him.
St. John Chrysostom