The dragons; or, the crocodiles. He means Pharaoh and all his mighty men, who were like these beasts in strength and cruelty. The waters, to wit, of the sea, where they were drowned.
Related Commentaries of Psalms 74:13
Psalms 74:13
13 Thou didst divided the sea by thy strength: thou brakest the heads of the dragons in the waters.