You have broken Rahab in pieces, as one that is slain; you have scattered your enemies with your strong arm.
Read Chapter 89
Augustine of Hippo
AD 430
11. Lastly, what hast Thou done in the sea itself, to pacify its rage, and to weaken it? "Thou hast humbled the proud as one that is wounded" (ver. 10). There is a certain proud serpent in the sea, of which another passage of Scripture speaks, "I will command the serpent, and he shall bite him;" and again, "There is that Leviathan, whom Thou hast made to mock him," whose head He bruises above the water. "Thou," he says, "hast humbled the proud, as one that is wounded." Thou hast humbled Thyself, and the proud was humbled: for the proud held the proud ones through pride: but the great One is humbled, and by believing in Him become small. While the little one is nourished by the example of One who from greatness descended to humility, the devil has lost what he held: because the proud held only the proud. When such an example of humility was displayed before them, men learned to condemn their own pride, and to imitate the humility of God. Thus also the devil, by losing those whom he had ...
Proud one. Hebrew Rahab, Egypt or Pharao, Psalm lxxxvi. 4., and Isaias li. 9. (Calmet) He alludes to the plagues inflicted on the Egyptians (Worthington)