In this verse, God is speaking through the prophet Isaiah to King Hezekiah of Judah, who is facing a dire threat from the Assyrian king, Sennacherib. The Assyrians were a powerful empire, and their military might was intimidating. However, God reassures Hezekiah that He will intervene. The 'certain report' refers to a rumor or news that will cause Sennacherib to retreat to his own land, where he will ultimately meet his demise. This promise highlights God's sovereignty and His ability to control the affairs of nations and rulers.
The verse serves as a powerful reminder that God is not distant or uninvolved in the struggles of His people. Instead, He is actively working to protect and deliver them. It encourages believers to have faith in God's promises, even when facing overwhelming challenges. The assurance that God can turn the tide against seemingly invincible foes provides comfort and hope. It emphasizes that no earthly power can thwart God's plans, and His justice will prevail in His timing.