The narrative Source BII includes a meeting of three Assyrian commanders accompanied by a large army with a Judean delegation at the conduit of the upper pool on the highway at the Fuller’s Field. Rāb-šaqê conveys to Hezekiah’s emissaries a message. He warns them not to rebel against Assyria, not to confront the Assyrian army with the aid of the Egyptians in a pitched battle, and not to trust YHWH for deliverance, since YHWH has allegedly sent Sennacherib to devastate the land of Judah. When Hezekiah sends a delegation to Isaiah to ask for YHWH’s aid, Isaiah delivers an oracle assuring the king of Judah not to fear, for a spirit will be given to the king of Assyria. He will hear a rumor, retreat to Assyria, and die by the sword. Source BII focuses on the murder of Sennacherib, on the Egyptian aid in a pitched battle, and mentions Taharqa, king of Kush, who would cause Sennacherib to retreat. The motifs of divine intervention, causing Assyria’s defeat and Sennacherib’s retreat and eventual murder, are the backbone of Source BII.

In Chapter 9, Strand BIII reflects the historical Sitz im Leben of the source in the Neo-Babylonian Period (the reigns of Nabopolassar and the early years of Nebuchadnezzar II). The author of this strand incorporated echoes of the events connected to the demise of the Assyrian Empire. More particularly, these echoes reflect the following events: a) the wars of the Babylonians under Nabopolassar on Assyrian soil from 616 to 609 BCE, during which the Babylonians devastated the heartland of Assyria and conquered its Western provinces, thus sealing Assyria’s demise; and b) the subsequent campaigns of the Neo-Babylonian Empire under Nebuchadnezzar II, during which the Babylonians crossed the Euphrates and conquered the Levant (605–598/7). The struggle between Assyria and Egypt over the Levant is omitted. During the siege of Jerusalem between 588 and 586 BCE, the people of Jerusalem decided to oppose the besieging Babylonians and not surrender. Jerusalem withstood a siege for a far longer time than any of the nations listed in Isa 37:12–13, namely during the conquests of the Neo-Babylonian Kings. Therefore, the people of Jerusalem could claim that God was protecting them and Jerusalem.

In Chapter 5, it is shown that Source BI reflects the events and atmosphere during the days of the Assyrian campaign of Sennacherib in 701 BCE. The Assyrians devastated Judah in Sennacherib’s third campaign – a claim corroborated by 2 Kgs 18:14–16; Mic 1:10–16 and Isa 1:4–9, and the extensive archaeological excavations and surveys of the Judean kingdom. 2 Kings 18:14–16 (source A) preserves an account of Hezekiah’s subjugation to Sennacherib and payment of an enormous tribute. Hezekiah’s submission occurred, according to the biblical narrative, at the beginning of Sennacherib’s campaign against Judah. Following the payment, Sennacherib sent his envoys to demand Hezekiah’s capitulation. The Assyrian annals describe the total submission of Hezekiah and a victory over his Egyptian allies. Hezekiah remained king of Judah and was not punished. The original Source BI, portraying the events during the 701 campaign, did not contain a description of an Assyrian defeat nor of the murder of Sennacherib, which occurred twenty years after his campaign to the Levant.