A quiet moment of interaction suddenly transforms into a clear, heavenly revelation. The messenger, who until this point appeared merely as an ordinary man holding a walking stick [ביאור שטיינזלץ], extends the tip of the staff he is leaning on and touches the prepared offering [מצודת ציון]. A unique miracle unfolds in response. Fire does not spark directly from the staff itself. Instead, the physical touch of the messenger sanctifies the meat and bread, and this newfound holiness draws divine fire to burst upward from the solid rock below [מצודת ציון, ביאור שטיינזלץ], much like fire consuming a sacrifice on an altar [אלשיך]. The flames then completely burn up the entire offering [מצודת ציון].
Immediately following this display, the messenger vanishes entirely from sight [מצודת דוד, ביאור שטיינזלץ]. The primary purpose of this supernatural event is not to prove that Gideon will successfully save the Israelites, as that destiny is confirmed only in later stages. Rather, the miracle serves to absolutely verify the identity of the visitor as an angel of God [אברבנאל]. Certain commentators note a striking resemblance between this fire emerging from the rock and the later miracle of the prophet Elijah calling down fire on Mount Carmel. This parallel strengthens traditions that connect the two historical figures [רלב״ג].
As the angel disappears into the flames, Gideon is struck with a profound fear of death. This intense reaction stems from a widespread belief in the ancient world that a physical human being cannot look upon a spiritual entity or an angel of God face-to-face and remain alive. Such deep anxiety over surviving a divine encounter is a familiar theme, echoed in the experiences of other biblical figures like Jacob and Manoah, who also feared for their lives after coming into contact with the heavenly realm [רלב״ג, אברבנאל].