'Siege' in the Bible

After this did Sennacherib king of Assyria send his servants to Jerusalem, (but he himself laid siege against Lachish, and all his power with him,) unto Hezekiah king of Judah, and unto all Judah that were at Jerusalem, saying,

Thus saith Sennacherib king of Assyria, Whereon do ye trust, that ye abide in the siege in Jerusalem?