Whedon's Commentary on the Bible - Isaiah 33:7
7. Notwithstanding the great occasion looked for in the choral strain above, there is occasion also for grief. Their valiant ones The lion-like heroes, messengers sent to Sennacherib or his officers (see 2 Kings 17:14) with the silver and the gold demanded as condition of peace, but which availed nothing with the truce-breaker. These deplore the state of things that would follow, namely, Jerusalem’s destruction, to all earthly view most probable. read more
Wesley's Explanatory Notes - Isaiah 33:24
And the inhabitant shall not say, I am sick: the people that dwell therein shall be forgiven their iniquity.The inhabitant — Of Jerusalem.Sick — Shall have no cause to complain of any sickness or calamity.Forgiven — They shall not only receive from me a glorious temporal deliverance; but, which is infinitely better, the pardon of all their sins, and all those spiritual and everlasting blessings, which attend upon that mercy. read more