The sudden revelation of Jonah’s identity completely shatters the sailors' understanding of their reality. The raging storm ceases to be a random natural disaster and is exposed as a direct divine response to the actions of a single man. This realization triggers a profound shift in the men, transforming their physical panic into deep spiritual terror. Earlier, their fear was simply the natural instinct to survive drowning. Now, they are struck with an immense awe of God, born from recognizing the absolute greatness of the Creator they suddenly face [מלבי״ם]. Their terror intensifies as they grasp that Jonah has sinned against the supreme God, a severe offense that cannot be appeased or bought off with money [מצודת דוד]. They understand that the root of their impending doom is unbearably heavy [אברבנאל]. Interestingly, the sailors' profound awe awakens precisely as a sharp contrast to Jonah's own recent declaration that he is a God-fearing man [אבן עזרא].
Gripped by this dread, the sailors cry out in disbelief at what Jonah has done. The primary approach among commentators is that they are not asking for an explanation. Rather, it is a rhetorical cry of deep shock and harsh rebuke. The sailors are utterly dismayed by the blatant contradiction in Jonah’s behavior. They condemn his actions, wondering how a man who proudly declares his reverence for God could possibly dare to rebel against and flee from such a mighty ruler [רש״י, אבן עזרא, ביאור שטיינזלץ, מלבי״ם].
The men are fully aware that Jonah is running away from God, but commentators differ on exactly when and how they learned this detail. One approach suggests that Jonah explicitly revealed his secret earlier [אבן עזרא, מלבי״ם]. According to this view, when first questioned about the storm, he confessed that he was a prophet sent to Nineveh who had refused his mission and fled the Land of Israel, the designated place of prophecy [רד״ק]. Now, with the danger so immediate and real, the sailors finally take his earlier confession with absolute seriousness [ביאור שטיינזלץ]. A differing perspective proposes that Jonah never explicitly spoke about his escape. Instead, upon hearing his current declaration that he is a Hebrew who fears God, the sailors piece the puzzle together and deduce the truth on their own. Their conclusion is so immediate and obvious that it is as if Jonah had told them directly [מצודת דוד, אברבנאל].