The mechanics(science) of many things in the bible are not detailed or explained..
As in spiritual possession.. What being possessed?..
What is "spirit/Spirit"?.. i.e. God, Angels, US, demons...
What "leaves" and "remains" when a human body dies?..
Gender seems so arbitrary.. incomplete.. primitive.. to me..
Could just be that gender is a second reality..
-OR- that gender speaks of something greater..
As an archetype(model) of something in us all..
Meaning; Maybe the female and male side of us all is spiritual reality..
That we're all greater than we seem.. all of us.. in many aspects..
EVEN (but not limited to) gender..
[[That we’re all greater than we seem]]
We’re certianly greater than we realize- We only barely touch on the potential of our mind capabilities, that’s for sure.
Whatever an angel might be in the spiritual realm, he must appear to be either male or female when on assignment here in the physical realm - or I suspect he'd stand out: