when king Hezekiah heard it
37:1 when king Hezekiah heard it. Isaiah 37 here is practically identical with II Kings 19. These twin passages (II Kings 18:13–20:19 and Isaiah 36–39) have both been included in the Old Testament canon with no explanation as to why. The original account, written by Isaiah, was presumably incorporated almost verbatim by the compiler of the records in I and II Kings when he came to that particular period in the history of King Hezekiah. Most conservative Hebrew scholars believe that the prophet Jeremiah did the final compilation and editing of these books, although no one really knows except the Holy Spirit who guided it all.