Isaiah 37:7

Behold, I will send a blast upon him
The king of Assyria; a pestilential one, as he afterwards did, which destroyed his army: or, I will put a spirit into him
^F19; a spirit of fear and dread, which will oblige him to desist from his purposes, and flee; though some interpret it only of an inclination, a will ^F20 in him, to return: it may be understood of an angel, a ministering spirit, and be rendered "I will send a spirit against him"; an angelic spirit, as he did, which cut off his army in one night: and he shall hear a rumour;
of the sudden and total destruction of his army; though some refer this to the rumour of the king of Ethiopia coming out to make war against him, ( Isaiah 37:9 ) , but upon this he did not return to his own land, nor was he slain with the sword, as follows: and return to his own land;
as he did, immediately upon the slaughter of his army by the angel: and I will cause him to fall by the sword in his own land:
as he did, being slain by his own sons, ( Isaiah 37:37 Isaiah 37:38 ) .