He stood by the conduit of the upper pool.—The spot was the same as that at which Isaiah had addressed Ahaz thirty or more years before (Isaiah 7:3). It was probably chosen by the Rabshakeh as commanding one end of the aqueduct which supplied the city with water, and thus enabling him to threaten that he· would cut off the supply (Isaiah 36:12).

From Lachish - This was a city in the south of the tribe of Judah, and was southwest of Jerusalem Joshua 10:23; Joshua 15:39. It was situated in a plain, and was the seat of an ancient Canaanite king. It was rebuilt and fortified by Rehoboam 2 Chronicles 11:9. It was in some respects a border town, and was a defense against the incursions of the Philistines. It was therefore situated between Jerusalem and Egypt, and was in the direct way of Sennacherib in his going to Egypt, and on his return. It lay, according to Eusebius and Jerome, seven Roman miles from Eleutheropolis toward the south. No trace of the town, however, is now to be found (see Robinson's "Bib. Researches," vol. ii. pp. 388, 389).

With a great army - Sennacherib remained himself for a time at Lachish, though he followed not long after. It is probable that he sent forward a considerable portion of his immense army, retaining only so many forces as he judged would be necessary to carry on the siege of Lachish. In 2 Chronicles 32:9, it is said that Sennacherib, while he sent his servants to Jerusalem, 'laid siege to Lachish and all his power with him;' but this must mean that he retained with him a considerable part of his army, and doubtless all that contributed to his magnificence and splendor. The word 'power' in 2 Chronicles 32:9, means also 'dominion' (see the margin), and denotes all the insignia of royalty: and this might have been retained while a considerable part of his forces had been sent forward to Jerusalem.

And he stood - He halted; he encamped there; He intended to make that the point of attack.

By the conduit ... - (See the notes at Isaiah 7:3)

Lachish—a frontier town southwest of Jerusalem, in Judah; represented as a great fortified city in a hilly and fruitful country in the Koyunjik bas-reliefs, now in the British Museum; also, its name is found on a slab over a figure of Sennacherib on his throne.

upper pool—the side on which the Assyrians would approach Jerusalem coming from the southwest (see on [762]Isa 7:3).

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 Isaiah 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. This pool lay outside the city, yet just by the walls of it, which showed the daring insolence of Rabshakeh to come so very nigh, for he was in the hearing of the men upon the walls, Isaiah 36:12, this Rabshakeh is by the Jewish writers thought to be an apostate Jew, because he spoke in the Jews' language; and some of them, as Jerome says, will have him to be a son of the Prophet Isaiah's, but without any foundation, Procopius, in 2 Kings 18:18, thinks it probable that he was a Hebrew, who either had fled on his own accord to the Assyrians, or was taken captive by them.