those days. About the time of the second invasion (2 Kings 18:13), but before the deliverance of 2 Kings 19:35.
the LORD. Hebrew. Jehovah. App-4.
Set thine house in order. Give charge concerning thine house. See the Structure of Isa 36:39.
die, and not live. Figure of speech Pleonasm (App-6),. double emphasis.