And there arose a great storm of wind; literally, there ariseth ( γίνεται λαίλαψ). St. Mark often uses the historical present, which gives vigor and point to his narrative. And the waves beat into the boat, insomuch that the boat was now filling ( ἤδη γεμίζεσθαι).
St. Matthew says (Matthew 8:24), "the boat was covered with the waves." St. Luke (Luke 8:23), "they were filling with water, and were in jeopardy." Bede and ethers have thought that the boat in which Christ was the only boat that was tossed by this storm; in order that Christ might show his power in limiting the area of the tempest.
But it is far more probable that the ether boats were subject to it; for they were very near to the boat in which Christ was. There must have been some reason for the allusion to these boats; and the wider the reach of the tempest, the greater would appear the Divine power of Christ in stilling it, and the greater the amount of testimony to the reality of the miracle.
The miracle was wrought to show his power over all creation, the sea as well as the dry land; and that they, his disciples, and all who were with him might believe in him as the Omnipotent God. But further, this tempest on the sea of Galilee was a type and symbol of the trials and temptations which should come on the Church.
For the Church of God is as a ship in a storm, ever tossed upon "the waves of this troublesome world." And then, moreover, as the rude storm urges the ship onwards, so that it more quickly reaches the desired haven, so afflictions and temptations quicken Christ's disciples to the greater desire of holiness, by which they are borne onwards more speedily to "the haven where they would be."