2 Kings 18:13

In the fourteenth year] The Assyrian invasion here described took place in 701, and therefore according to this v. Hezekiah's accession was in 714 but 2 Kings 18:10 states that Samaria, which fell in 722, was captured in Hezekiah's 'sixth' year, which makes 727 the date of his accession. The section 2 Kings 18:13; 2 Kings 18:17 recurs in Isaiah 36:1.

Sennacherib] succeeded Sargon in 705. The beginning of his reign was much disturbed, and his first campaign was against the Babylonian prince, Merodach Baladan, whom he drove from his capital. This was followed by an invasion of the Cassi, a people of Elam; and then in 701 he undertook the expedition against Judah and the other Palestinian states, which is described in the text.

Against all the fenced cities] Sennacherib in his inscriptions relates that he captured fortysix cities of Judah and deported more than 200,000 of the inhabitants. Hezekiah himself was besieged in his capital and compelled to tender submission, as recorded in 2 Kings 18:14.