"Where the word of a king is, there is power: and who may say unto him, What doest thou?" (Ecclesiastes 8:4).
Perhaps the arch-type of absolute monarchs was Babylonia's King Nebuchadnezzar, of whom the prophet Daniel could say: "Thou, O king, art a king of kings: for the God of heaven hath given thee a kingdom, power, and strength, and glory" (Daniel 2:37). The word of this and every true king was with power, the king being answerable to no man but himself, for his authority came from God. "For there is no power but of God" (Romans 13:1). Many kings have had to learn this truth the hard way, however, for they have found that God could remove them as quickly as He had ordained them when they abused that power.
But there is one King who will never fall; one "who is the blessed and only Potentate, the King of kings; . . . to whom be honor and power everlasting" (I Timothy 6:15-16). The Lord Jesus Christ has asserted: "All power is given unto me in heaven and in earth" (Matthew 28:18), and one day all creatures in heaven and earth will acknowledge: "Thou art worthy, O Lord, to receive glory and honor and power: for thou hast created all things" (Revelation 4:11). In that day all "The kingdoms of this world (shall) become the kingdoms of our Lord, and of His Christ; and He shall reign for ever and ever" (Revelation 11:15).
This one, who is King of all kings, is also the One who is "called The Word of God" (Revelation 19:13). The word of this King is of such power that He could speak the mighty cosmos into existence. His word could calm a violent storm and call Lazarus back from death.