The Greek noun pantokratōr (παντοκράτωρ) means the All-Ruler or the Almighty — one who holds power over all things. It combines pas (all) and kratōs (strength, power, dominion). In the Septuagint it frequently translates the Hebrew El Shaddai (God Almighty) and YHWH Tsabaoth (LORD of Hosts). In Revelation it appears nine times as a title for God.
Pantokratōr is the fullest expression of divine omnipotence. It declares that God's rule is comprehensive — over all creation, all nations, all time, all powers. Revelation's repeated use — 'the Lord God Almighty, who was, and is, and is to come' (Revelation 4:8) — frames the entire book's vision of history moving under His sovereign direction. The suffering saints of Revelation could endure because the One on the throne is pantokratōr. Paul's benediction in 2 Corinthians 6:18 — 'I will be a Father to you, and you will be my sons and daughters, says the Lord Almighty' — grounds the Father-child relationship in God's ultimate power and authority.