Now it came to pass— This famous expedition happened in the year of the world 4001, seven hundred and thirteen years before Christ. Concerning Sennacherib, see Univ. Hist. vol. 2: p. 79 vol. iv. 162, &c. All the defenced cities, must mean all those which were in the way; for it is plain that he had not taken all. See chap. Isaiah 37:8 and the Note.
Related Commentaries of Isaiah 36:1
Isaiah 36:1
1 Now it came to pass in the fourteenth year of king Hezekiah, that Sennacherib king of Assyria came up against all the defenced cities of Judah, and took them.