The Hebrew chezeq is one of several nouns derived from the root chazaq (to be strong). It denotes the quality or exercise of strength. In Ezekiel 30:15 God says he will pour out his wrath on Sin (Pelusium), the 'stronghold (chezeq) of Egypt.' The word captures the idea of consolidated, concentrated power β whether divine or human.
The chezeq family of words in Hebrew theology points to God as the ultimate source of all genuine strength. When Ezekiel describes Egypt's fortresses as chezeq, the point is that even human strongholds fall before God's judgment. The same root that describes God's invincible saving arm (Deuteronomy 4:34) is used to describe strongholds that will be shattered. Strength without covenant fidelity is temporary β the LORD's chozeq is eternal.