The sea carried powerful symbolic associations in the biblical world. Beyond the ordinary danger of storms, the waters could represent chaos and forces beyond human mastery.
Jesus does not appeal to another authority in the scene. He rebukes the winds and sea directly, and creation responds to his command.
Psalm 107:23-32 describes sailors overwhelmed by a storm who cry to the LORD; he stills the storm and hushes the waves. Psalms 65 and 89 likewise celebrate God's rule over roaring seas, and Jonah's narrative identifies the LORD as sovereign over the storm.
Against that scriptural background, Matthew's portrayal of Jesus doing what the Psalms praise God for doing carries Christological weight.
The disciples fear they are perishing and appeal to Jesus. After rebuking their little faith, Jesus rebukes the natural forces themselves. Matthew emphasizes the result as a great calm.
The episode ends not merely with amazement at a miracle but with an identity question: 'What sort of man is this?' The narrative invites the reader to answer that question in light of the scriptural portrait of God's authority over the sea.
Prophets can be instruments of miracles, so the existence of a nature miracle alone would not establish deity. The distinctive feature is Jesus' immediate personal command over forces that Israel's worship texts place under God's sovereign rule.
The scene is therefore strong cumulative evidence, especially when read with the later walking-on-the-sea episode and Matthew's wider presentation of Jesus' universal authority.
The disciples marvel and ask what sort of man Jesus is, since even winds and sea obey him.