2 Chronicles 32:18
Then they cried with a loud voice in the Jews’ speech unto the people of Jerusalem that were on the wall, to affright them, and to trouble them; that they might take the city. Then they cried with a loud voice in the Jews’ speech unto the people of Jerusalem that were on the wall, to affright them, and to trouble them; that they might take the city.
This verse belongs to Sennacherib's campaign and invasion against Judah, when his forces sent men against Jerusalem to take the city and the people of Jerusalem faced an armed enemy at the wall. Assyrian officers shouted with a loud voice in the Jews' own language to the people and defenders on Jerusalem's wall, deliberately aiming to frighten, trouble, distress and discourage them into surrendering so the city could be taken. Their appeal was unusual because it bypassed the king and spoke directly to the people.
Their loud taunts belittled God in an effort to discourage Hezekiah and the people, treating Jerusalem's God as powerless like idols made by human hands and denying His power to deliver Jerusalem. The intimidation failed, for in answer to the humility and prayers of Hezekiah and the people the Lord overthrew the Assyrians by His angel, who struck down the Assyrian leaders and commanders. After the Assyrian army was destroyed, Sennacherib returned home defeated and was later killed by his sons.
The account in this chapter shows the Assyrian army was not near Jerusalem but was with the king of Assyria at Libnah when the angel slew 185,000 men, and therefore it does not support identifying the Tophet of Isaiah 30:33 with the destruction of the Assyrian army. The lesson drawn from the account is that God's people need not defend themselves with carnal weapons, because their conflict is not with flesh and blood and their weapons are not carnal.