Faced with the threats and insults of a massive empire, the natural human reaction is often fear or surrender. Yet, the King of Judah responds with deep faith, taking the physical evidence of the threat directly into a sacred space to seek salvation. Hezekiah receives written letters containing the enemy's harsh messages [מצודת דוד, ביאור שטיינזלץ]. Although he is handed multiple documents, the action of reading is treated as a single event. One approach explains that the king carefully read and spread out each individual letter [מצודת דוד]. Another perspective suggests this reflects an ancient custom where multiple copies of the same important document were sent to ensure delivery. Thus, the king received many copies of the same message but only needed to read one [שד״ל].
The contents of these letters included severe insults and blasphemies directed at God, sent straight from the King of Assyria. Upon reading these words, Hezekiah realized that Isaiah's prophecies regarding the downfall of Assyria were now ready to be fulfilled. Because of this, he refused to surrender and instead brought the letters to the House of God to pray [מלבי״ם].
Once inside the Temple, Hezekiah physically laid the document out before God, ensuring the written words faced upward [ביאור שטיינזלץ]. This physical gesture served as a symbolic cry to heaven. He was asking God to take action to defend His own name, which had been deeply disrespected by the written insults, and to bring justice upon the enemy [שד״ל].