CHRYSOSTOM:
For what purpose does he go up into the hills on the mountain? To teach us that solitude and seclusion are good, when we are to pray to God. With this in view, you see, we find him continually withdrawing into the wilderness. There he often spends the whole night in prayer. This teaches us earnestly to seek such quietness in our prayers as the time and place may afford. For the wilderness is the mother of silence; it is a calm and a harbor, delivering us from all turmoils.
CHRYSOSTOM:
The disciples are tossed on the waves again. They are in a storm, fully as bad as the previous one. Gently and by degrees he excites and urges the disciples on toward greater responsiveness, even to the point of bearing all things nobly. Whereas in the previous storm they had him with them in the ship, now they were alone by themselves. Even when he was asleep in the boat in the previous situation, he was ready to give them relief from danger. But then he was present to them.
Now he is leading them into a greater degree of challenge. Now he is not even present to them. He has departed. In midsea he permits a storm to arise. This was all for their training, that they might not look for some easy hope of preservation from any earthly source. He then allows them to be tossed by the storm all night! This had the purpose of awakening their stony hearts in a most complete way. This is how Jesus dealt with the nature of their fear, which the rough weather and the timing had produced. He cast them directly into a situation in which they would have a greater longing for him and a continual remembrance of him.