I was reading in Isaiah 51 and this is what the note for the 9th verse says about "Rahab":
"One of the names for the mythological dragon from Yahweh’s primordial battle with the forces of chaos. In 30:7, Rahab is figuratively used to represent Egypt."
"Biblical references to the sea monster Rahab fall into two groups:
allusions to the dragon defeated at the time of creation (Psa 89:10, Job
9:13; 26:12), and metaphorical references to Egypt (Psa 87:4, Isa
30:7)."
Barry, J. D., Grigoni, M. R., Heiser, M. S., Custis, M., Mangum, D., & Whitehead, M. M. (2012). Faithlife Study Bible (Is 51:9). Bellingham, WA: Logos Bible Software.
My HCSB study bible also says the same thing about Rehab in these verses, it fails however to mention where this information came from. So what I want to know is where on Earth did this information come from? It defiantly isn't explained in the bible, I have never heard anything like this before, this definitely isn't taught in any churches I've been to.