Charles Ellicott Commentary 2 Chronicles 32:30

"This same Hezekiah also stopped the upper spring of the waters of Gihon, and brought them straight down on the west side of the city of David. And Hezekiah prospered in all his works." — 2 Chronicles 32:30 (ASV)

This same Hezekiah also stopped. — And he, Hezekiah, had closed in the upper outlet of the waters of Gihon. (See 2 Chronicles 32:3.)

And brought ... city of David. — And conducted them underground to the west of the city of David. (Compare 2 Kings 20:20, where this great work of Hezekiah is also referred to in concluding his history: He made the pool, and the aqueduct, and brought the waters into the city.) The chronicler gives further details.

Brought it straight. — Directed or conducted them (wayyashshĕrçm; the form in the Hebrew margin is a peculiar contraction of the ordinary Piel form which appears in the text).

And Hezekiah prospered. — 2 Chronicles 31:21; 1 Chronicles 29:23.