@Ian
That Jesus is God (well, one aspect of God) and he took human to be sacrificed, is quite mainstream theology eveer since. I don't think anyone contests that paragraph you quoted.
The debate for the last 1800 years or so, though, has been exactly HOW that works. Did he get born? Did he just materialize as an adult-looking human? Did he just basically possess a human body, overriding (or even burning out) the human consciousness of that human? Etc.
People have been flaming each other over that since day 1. And I mean, since the 5'th century or so, they LITERALLY flamed each other over that kinda details. As in, at the stake.
Yes, I realised that's what people here have been arguing about, but that argument is defeated by that passage. That passage from Phillipians is a direct refutation of any argument about whether Jesus was actually a human man and hence born in the way all humans are born from his human mother etc. All that is explicitly ruled out by that passage in Philippines.
In that passage it specifically says he was
not human.
Any other questionable or ambiguous references such as
"born of a woman" or
"according to the flesh" etc., are completely ruled out by that passage in Phillipians, where Paul specifically says that Jesus was definitely not human. That just means that when Paul uses phrases like "according to the flesh", he is talking in religious metaphors and not talking literally about a normal human being ... that has to be the case because in Phillipians he has already stressed 3 times that Jesus was NOT a human man ... he was a spiritual form of Yahweh who the faithful experienced in visions, and where in the visions "Jesus/Christ/Yehoshua/Iesous/Yahweh..." manifested in the likeness of mankind such that people on earth could recognise his being/presence ....
... the implication is that Paul (and perhaps many others in his time), probably thought that celestial gods, spirits, angles, demons etc. had to give themselves the illusion of human-like appearance in order to interact with people and objects on the Earth, so as to become known to, i.e. visualised by and experienced by, mortal human people on Earth.
But the bottom-line is unarguable (if Phillipians is taken to be genuine). And that is - Paul specifically says, and even stresses 3 times, that Jesus was absolutely NOT a human man. So whatever Jesus was, real or mythical or anything else,
Paul did not think he was human ...
Paul very specifically says he was not human.