He shall not — The army sent with Rabshaketh did not form a close siege against it, but only disposed themselves so as to block it up at some distance; possibly waiting 'till the king of Assyria had taken Libnah and Lachish, (which they presumed he would speedily do.)
Related Commentaries of 2 Kings 19:32
2 Kings 19:32
32 Therefore thus saith the LORD concerning the king of Assyria, He shall not come into this city, nor shoot an arrow there, nor come before it with shield, nor cast a bank against it.