Psalm 74:13
You did divide the sea by your strength: you brake the heads of the dragons in the waters.
Torrey's Topical Textbook—AKJV

Isaiah 27:1
In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea.
Torrey's Topical Textbook—AKJV