In his own commentary Crowley seemed to focus on the combative, fighting aspect of this verse. But I think it's also equally possible to interpret this verse as a kind of brotherly unity. Solidarity and comradeship among Thelemites.
Maybe it's that Gemini influence working.
The verse number, 59, is the numeric value of the word, AChIM - Brethren. That ties in nicely with this verse. Also the structure of this verse is highly suggestive too. 4 words, 17 letters. Of course this is pure speculation but I see a possible connection with Atu's IV and XVII. The Keen, the Proud, the Royal, and the Lofty of the previous verse are all sovereign individuals with decidedly Emperor like qualities. But we are told they are brothers. Perhaps that's because they all share the same mother - Atu XVII The Star - Nuit. Despite all the seeming uniqueness and diversity among Thelemites (and indeed all Stars), there is still a common bond that unites us all.
There's a curious thing about this verse that may be no more than coincidence, but....
3:59 taken as a straight number is 359 That is the numerical value of the Hebrew, ShTN - Satan. The verse itself says "fight
ye." Ye transliterated into Hebrew is YH, which has the value of 15. Atu XV The Devil?
Perhaps a particular aspect of that card is being pointed to here. In the Hebrew scriptures
the Satan is the adversary that tests and trys the faithful. But as Paul Foster Case rightly points out:
PFC said:
The Holy Guardian Angel makes all the tests and trials which lead us along the path of attainment.
(Incidentally he also points out that XV reduces to VI The Lovers.)
Verse 204. Maybe those found worthy are truely TzDIQ(204) - the Righteous.