Isaiah 36:2

Rabshakehis not a proper name, but an official designation, like the Tartan (see ch. Isaiah 20:1) and the Rab-saris (chief eunuch) who are mentioned along with him in 2 Kings 18:17. The Assyrian word is Rab-saq, said to mean "chief of the officers."

from Lachish The most important Judæan fortress in the Shephelah, commanding the road from Egypt. Recent excavations by Mr Flinders Petrie have identified its site with Tell-el-Hesy, a few miles distant from the modern Umm Lakis.

the conduit of the upper pool See on ch. Isaiah 7:3.