New Revised Standard Version
On that day the LORD with his cruel and great and strong sword will punish Leviathan the fleeing serpent, Leviathan the twisting serpent, and he will kill the dragon that is in the sea.

Contemporary English Version
On that day, Leviathan, the sea monster, will squirm and try to escape, but the LORD will kill him with a cruel, sharp sword.

New American Bible
On that day, The LORD will punish with his sword that is cruel, great, and strong, Leviathan the fleeing serpent, Leviathan the coiled serpent; he will slay the dragon in the sea.

Douay-Rheims Bible
In that day the Lord with his hard, and great, and strong sword shall visit leviathan the bar serpent, and leviathan the crooked serpent, and shall slay the whale that is in the sea.

In that day the Lord with his hard, and great, and strong sword shall visit leviathan the bar serpent, and leviathan the crooked serpent, and shall slay the whale that is in the sea.

with his

Isaiah 34:5,6 For my sword is inebriated in heaven: behold it shall come down upon Idumea, and upon the people of my slaughter unto judgment. . . .

Isaiah 66:16 For the Lord shall judge by fire, and by his sword unto all flesh, and the slain of the Lord shall be many.

Deuteronomy 32:41,42 If I shall whet my sword as the lightning, and my hand take hold on judgment: I will render vengeance to my enemies, and repay them that hate me. . . .

Job 40:19 He is the beginning of the ways of God, who made him, he will apply his sword.

Psalm 45:3 Gird thy sword upon thy thigh, O thou most mighty.

Jeremiah 47:6 O thou sword of the Lord, how long wilt thou not be quiet? Go into thy scabbard, rest, and be still.

Revelation 2:16 In like manner do penance. If not, I will come to thee quickly and will fight against them with the sword of my mouth.

Revelation 19:21 And the rest were slain by the sword of him that sitteth upon the horse, which proceedeth out of his mouth: and all the birds were filled with their flesh.

Leviathan

Job 12:1 Then Job answered, and said:

Psalm 74:14 Thou hast broken the heads of the dragon: thou hast given him to be meat for the people of the Ethiopians.

Psalm 104:26 There the ships shall go. This sea dragon which thou hast formed to play therein.

piercing.

Isaiah 65:25 The wolf and the lamb shall feed together; the lion and the ox shall eat straw; and dust shall be the serpent's food: they shall not hurt nor kill in all my holy mountain, saith the Lord.

Job 26:13 His spirit hath adorned the heavens, and his obstetric hand brought forth the winding serpent.

the dragon

Isaiah 51:9 Arise, arise, put on strength, O thou arm of the Lord, arise as in the days of old, in the ancient generations. Hast not thou struck the proud one, and wounded the dragon?

Psalm 74:13,14 Thou by thy strength didst make the sea firm: thou didst crush the heads of the dragons in the waters. . . .

Jeremiah 51:34 Nabuchodonosor king of Babylon hath eaten me up, he hath devoured me: he hath made me as an empty vessel: he hath swallowed me up like a dragon, he hath filled his belly with my delicate meats, and he hath cast me out.

Ezekiel 29:3 Speak, and say: Thus saith the Lord God: Behold, I come against thee, Pharao king of Egypt, thou great dragon that liest in the midst of thy rivers, and sayest: The river is mine, and I made myself.

Ezekiel 32:2-5 Son of man, take up a lamentation for Pharao the king of Egypt, and say to him: Thou art like the lion of the nations, and the dragon that is in the sea: and thou didst push with the horn in thy rivers, and didst trouble the waters with thy feet, and didst trample upon their streams. . . .

Revelation 12:3-17 And there was seen another sign in heaven. And behold a great red dragon, having seven heads and ten horns and on his heads seven diadems. . . .

Revelation 13:2,4,11 And the beast which I saw was like to a leopard: and his feet were as the feet of a bear, and his mouth as the mouth of a lion. And the dragon gave him his own strength and great power. . . .

Revelation 16:13 And I saw from the mouth of the dragon and from the mouth of the beast and from the mouth of the false prophet, three unclean spirits like frogs.

Revelation 20:2 And he laid hold on the dragon, the old serpent, which is the devil and Satan, and bound him for a thousand years.

in the sea

Jeremiah 51:13 O thou that dwellest upon many waters, rich in treasures, thy end is come for thy entire destruction.

Revelation 13:1 And I saw a beast coming up out the sea, having seven heads and ten horns: and upon his horns, ten diadems: and upon his heads, names of blasphemy.

Revelation 17:1,15 And there came one of the seven angels who had the seven vials and spoke with me, saying: Come, I will shew thee the condemnation of the great harlot, who sitteth upon many waters: . . .