Gravity's Rainbow question for the Biblically inclined

[robinlandseadel at comcast.net]

Or reclined, all I really want to know is:

My favorite passage in Gravity's Rainbow is Geli's spell, 
pages P748/749, V733/734, B855/857. I've seen the craft
sources for Her little bit 'o sex magique, but I sense a 
biblical reference in:

          This is magic, Sure---but not necessarily fantasy. 
          Certainly not the first time, at the edge of of the 
          evening, often forever, without knowing it.

Now if you know yr magic, you know that a binding love spell 
usually is not a good thing. This binding happens to have
fantastic mojo on account of little miss hot stuff's purity of intent:

          "Intent is EVERYTHING. And that's the only secret there is."

http://www.compostcoven.org/cnl/lineage.html

As far as I can tell, that tenth generation Slothrop is a
major motor for all of Pynchon's Fictions, the whole notion 
of heresy gets a workout in Against the Day and GR.  
My assumption here is that the particular heresy on display
is the notion that literal black magic can work towards the
Christian moral high ground---on account of the binding spell,
Geli prevents Tchitcherine from killing Enzian, sort of a swords 
and wands and cups and pentacles into ploughshares kinda thing, 
if you catch my drift. OBA is arguing the case of Love always having 
unintended good consequences. All you really need is love. 
And good tunes, really good tunes, like that La Gazza Ladra stuff.
Another heresy of inclusion, as it were.

Of course, for that theory to work we all have to clap our hands and shout 

          "I Believe In Faryies. . . ."

I'm sorry, been playing Elizabethan Madrigals all morning long.
for that theory to work we have to find a biblical passage in which 
two brothers both lose their wars against each other and leave it 
behind like a discarded toy, with resonances in:

          "not the first time, at the edge of of the 
          evening, often forever, without knowing it."

Of course, it does make me wonder if there's a Civil War novel
stuffed in a drawer, somewhere.