And the king of Assyria sent Rabshakeh from Lachish to Jerusalem unto King Hezekiah with a great army,.... Notwithstanding he had taken Hezekiah's money to withdraw his army out of his country, yet sends it out to his very capital; along with this Rabshakeh he sent two other generals, Tartan and Rabsaris, 2Ki 18:17 though they are not mentioned, only Rabshakeh, because he was the principal person, however the chief speaker.
Lachish was a city in the tribe of Judah, Jos 15:39, which Sennacherib was now besieging, 2Ch 32:9. This message was sent, Bishop Usher says, three years after the former expedition:and he stood by the conduit of the upper pool, in the highway of the fullers' field; where they spread their clothes, as the Targum, having washed them in the pool, of which see Isa 7:3.
Ben Melech thus describes the pool, conduit, and highway: the pool is a ditch, built with stone and lime, where rainwater was collected, or where they drew water from the fountain, and the waters were gathered into this pool; and there was in this pool a hole, which they stopped, until the time they pleased to fetch water, out of the pool: and the conduit was a ditch near to the pool, and they brought water out of the pool into the conduit, when they chose to drink, or wash garments: the highway was a way paved with stones, so that they could walk upon it in rainy days; and here they stood and washed their garments in the waters of the conduit, and in the field they spread them to the sun.