Matthew 8:23

The multitudes then He sent on, but the disciples He took with Himself: for the others mention this too. And He took them with Him, not for nought, nor at hazard, but in order to make them spectators of the miracle that was to take place. For like a most excellent trainer, He was anointing them with a view to both objects; as well to be undismayed in dangers, as to be modest in honors. Thus, that they might not be high minded, because having sent away the rest, He retained them, He suffers them to be tossed with the tempest; at once correcting this, and disciplining them to bear trials nobly. For great indeed were the former miracles too, but this contained also in it a kind of discipline, and that no inconsiderable one, and was a sign akin to that of old. For this cause He takes the disciples only with Himself. For as, when there was a display of miracles, He suffers the people also to be present; so when trial and terrors were rising up against Him, then He takes with Him none but the champions of the whole world, whom He was to disciple.

(De Cons. Ev. ii. 23.) Matthew relates that this was done when He gave them commandment that they should go over the lake, Luke, that it happened as they walked by the way; which is no contradiction, for they must have walked by the way that they might come to the lake.

(in loc.) Or; The boat is the present Church, in which Christ passes over the sea of this world with His own, and stills the waves of persecution. Wherefore we may wonder, and give thanks.

Otherwise; The sea is the turmoil of the world; the boat in which Christ is embarked is to be understood the tree of the cross, by the aid of which the faithful having passed the waves of the world, arrive in their heavenly country, as on a safe shore, whither Christ goes with His own; whence He says below, He that will come after me, let him deny himself, and take up his cross, and follow me. (Mat. 16:24.) When then Christ was fixed on the cross, a great commotion was raised, the minds of His disciples being troubled at His passion, and the boat was covered by the waves. For the whole strength of persecution was around the cross of Christ, on which He died; as it is here, But he was asleep. His sleep is death. The disciples awaken the Lord, when troubled at His death; they seek His resurrection with earnest prayers, saying, Save us, by rising again; we perish, by our trouble at Thy death. He rises again, and rebukes the hardness of their hearts, as we read in other places. He commands the winds, in that He overthrew the power of the Devil; He commanded the sea, in that He disappointed the malice of the Jews; and there was a great calm, because the minds of the disciples were calmed when they beheld His resurrection.

(Hom. in div. vii.) Christ having performed many great and wonderful things on the land, passes to the sea, that there also He might show forth His excellent power, presenting Himself before all men as the Lord of both earth and sea. And when he was entered into a boat, his disciples followed him, not being weak but strong and established in the faith. Thus they followed Him not so much treading in His footsteps, as accompanying Him in holiness of spirit.