ישעיהו, פרק ל״ג, פסוק ט״ז

A profound promise of absolute security, protection, and abundance is granted to those who are truly deserving. This guarantee is directed toward the righteous individual who performs good deeds [מצודת דוד, אבן עזרא]. Alternatively, this reassurance is aimed specifically at King Hezekiah, giving him the strength to stand firm and without fear against the impending siege by Sennacherib, King of Assyria [מלבי״ם, רד״ק].

The nature of this protection is compared to dwelling in elevated heights, a symbol of having the upper hand and remaining entirely safe from anyone below [שד״ל]. The righteous person or king lives in absolute safety, completely out of the enemy's reach [מצודת דוד, רד״ק]. This security is likened to being surrounded by strong towers and rocky fortresses [מצודת ציון, רד״ק]. It represents a state of perfect safety, resting in Zion completely shielded from any external danger, much like hiding inside an unconquerable mountain stronghold.

Beyond physical defense, there is a guarantee of continuous provision, ensuring that even during a prolonged siege, starvation is never a threat [מלבי״ם]. Food will be supplied directly from heaven without delay, meaning the righteous will never be forced to beg for their daily meals [רש״י, מצודת דוד, אבן עזרא, ביאור שטיינזלץ]. Furthermore, their water source will remain constant and stable, drawn from a well that never fails or dries up [מצודת ציון, מצודת דוד, רד״ק, אבן עזרא, ביאור שטיינזלץ]. This reliable flow represents the widespread blessing and prosperity that would define Hezekiah's reign [רד״ק]. Beyond physical sustenance, this unfailing water source serves as a broader promise that his descendants will thrive and all his needs will be met over time, allowing him to enjoy a life of lasting peace and comfort [רש״י, אבן עזרא].