Isaiah 37:7

I will send a blast upon him Render as in R.V. I will put a spirit in him, i.e. a spirit of craven fear, depriving him of his natural courage and resourcefulness. How the spirit will work is stated in what follows: a mere rumour will drive him back to his own land, there to meet his death (cf. 2 Kings 7:6). There is no allusion in this oracle to the disastrous blow recorded in Isaiah 37:36. The "rumour" is no doubt that of the approach of Tirhakah (Isaiah 37:9).