The Sword That Turns, Then Speaks
Old Testament: Genesis 3:24
And he cast out Adam; and placed before the paradise of pleasure Cherubims, and a flaming sword, turning every way, to keep the way of the tree of life.
Old Testament, also: Zacharias 13:7
Awake, O sword, against my shepherd, and against the man that cleaveth to me, saith the Lord of hosts: strike the shepherd, and the sheep shall be scattered: and I will turn my hand to the little ones.
New Testament: Apocalypse 19:15
And out of his mouth proceedeth a sharp two edged sword; that with it he may strike the nations. And he shall rule them with a rod of iron; and he treadeth the winepress of the fierceness of the wrath of God the Almighty.
The connection
The sword at Eden's gate turns every way, barring the road back. Zacharias hears the Lord command a sword against His own shepherd, a text with its own confirmed fulfilment: Christ quotes it directly of Himself the night of His betrayal, "For it is written: I will strike the shepherd, and the sheep of the flock shall be dispersed" (Matthew 26:31). That same sword-against-the-shepherd finds its edge again in Simeon's word to Mary, that a sword would pierce her own soul (Luke 2:35), and in the Letter to the Hebrews, where the sword becomes the living word of God itself, sharper than any two edged blade, dividing soul from spirit (Hebrews 4:12). In the Apocalypse the turning belongs to Christ Himself: a sharp two edged sword now proceeds from His own mouth. The blade that once barred the way back is now the word that goes out from Him to strike and to rule.
Moral sense
The sword the soul fears standing between it and what it has lost becomes, at the last, the word Christ Himself speaks; better to be struck by that word now than to keep running from it.
Anagogical sense
The sword from Christ's mouth in the Apocalypse pictures the last judgment where His word alone, no longer any creature's blade, is what finally divides and rules.
Warrant
Apocalypse 19:15 does not cite or name Genesis 3:24 or Zacharias 13:7; this is my own reading of the sword motif's arc, not an explicit NT citation. Note also that Apocalypse 19:15 falls within the same verse range (19:11-13, 15-16) already used as the NT antitype for "The Divine Warrior's Winepress and the King of Kings," which reads that scene through the winepress and rod-of-iron imagery rather than the sword; the two entries are cross-linked. Zacharias 13:7 does have a genuine, explicit dominical citation, but it points to Matthew 26:31, not to this entry's Apocalypse pairing. The shared Greek was checked and does not change the tier: Genesis 3:24 in the Septuagint has rhomphaia and Apocalypse 19:15 has rhomphaia oxeia, but rhomphaia is the ordinary Septuagint word for a sword, so the agreement shows John writing in Septuagint diction and establishes no dependence on this verse in particular. Two further words are shared with Zacharias rather than with Genesis: patasso, to strike, at Zacharias 13:7 in the Septuagint and at Apocalypse 19:15, and pantokrator in both. The verb is the more interesting of the two, since Zacharias commands that the shepherd be struck and the Apocalypse has Him striking the nations, one verb turned around.
