To this point Jehu has not had much time for anything but rapid destruction. In the next episode (10:1–17) he appears more calculating. There is a grisly irony with Jehu’s letters: through a letter Jezebel secured the death of Naboth in Jezreel, and now by a similar means Jehu destroys Ahab’s offspring by sending correspondence to the same address. Jehu’s intimidating epistle—not dissimilar to Jezebe…
Baker Publishing Group, The Baker Illustrated Bible Commentary, by Gary M. Burge