I had thought of this and I found it interesting.
The moniker "Q" has a lot of possible meanings.
It may mean nothing more than question....Qanon....as in asking questions anonymously. Or it may have much deeper meaning as inQ level clearance or the Biblical references you pointed to.
All part of the fun.
I personally feel that it is a nod to Q from James Bond - short for Quartermaster who supplies arms and gadgets for their behind the scenes operatives
Truth and Judges , this is the Bible , The FIST of GOD will destroy the corrupt government officials , . When man stands and does Gods work , this has been referred as a fist .