Isaiah 22:9

“Ye have seen also the breaches of the city of David, that they are many, &c.] Not Jerusalem in general, but that part of it which was called the stronghold of Zion, and in particular had the name of the city of David, (<100507>2 Samuel 5:7) the fortifications of which, in times of peace, had gone to decay; and which they had seen before, but took no notice of, being in safety; but now besieged, and in great danger, they looked upon them in good earnest, in order to repair them, and secure themselves from the irruption of the enemy; for this is not to be understood of breaches now made by the Assyrian army, but of old ones, which had lain neglected; (see <143205> 2 Chronicles 32:5): and ye…”

“Ye have seen--rather, "Ye shall see." city of David--the upper city, on Zion, the south side of Jerusalem (Sa2 5:7, Sa2 5:9; Kg1 8:1); surrounded by a wall of its own; but even in it there shall be "breaches." Hezekiah's preparations for defense accord with this (Ch2 32:5). ye gathered--rather, "ye shall gather." lower pool--(See on Isa 22:11). Ye shall bring together into the city by subterranean passages cut in the rock of Zion, the fountain from which the lower pool (only mentioned here) is supplied. See on Isa 7:3; Kg2 20:20; Ch2 32:3-5, represent Hezekiah as having stopped the fountains to prevent the Assyrians getting water. But this is consistent with the passage here. The superfluous…”

“Ye have seen also the breaches - You who are inhabitants of the city. That such breaches were actually made, see 2 Chronicles 32:5. Of the city of David - Of Jerusalem, so called because it was the royal residence of David. Zion was usually called the city of David, but the name was given also to the entire city. And ye gathered together ... - That is, Hezekiah and the people of the city collected those waters. Of the lower pool - (For a description of the upper and lower pool, see the notes at Isaiah 7:3). The superfluous waters of the lower pool usually flowed into the valley of Hinnom, and thence, into the valley of Jehoshaphat, mingling with the waters of the brook Kedron. It would seem…”

“Seen - That is, observed in order to the reparation of them. The waters - That you might both deprive the enemy of water, and supply the city with it. Isaiah 22:10”

“22:9 Jerusalem (literally the city of David): Calling Jerusalem “the city of David” evokes memories of Israel’s greatest king and God’s blessing upon him and the nation (see also 60:14). • You store up water in the lower pool: Hezekiah expended great energy in ensuring a constant supply of water (see 22:11; 2 Kgs 20:20).”

“Kg2 20:20; Ch2 32:1-6, Ch2 32:30 Isaiah 22:11”