By the great commotion which such terrible reports shall cause in the hearts and heads of the hearers. See Poole on "1 Samuel 3:11"; See Poole on "Jeremiah 19:3".
Related Commentaries of 2 Kings 21:12
2 Kings 21:12
12 Therefore thus saith the LORD God of Israel, Behold, I am bringing such evil upon Jerusalem and Judah, that whosoever heareth of it, both his ears shall tingle.