You are saying you will agree Jesus took on humanity forever but only if you can deny the physical aspect of humanity. The resurrected body of Jesus, and ours, are changed or transformed. They are glorified physical bodies, but they are physical.
Paul calls resurrected bodies “spiritual bodies”. If I remember correctly, the word for “body” is “sarx” which means “flesh”. So Paul is combining spiritual and physical in his explanation; affirming both and denying neither in the reality of the resurrection.
Again, this is an old heresy. I think Gnosticism began in the first century denied the humanity of Jesus. It has been rejected for nearly 2000 years.
peace to you
Oh come on. Answer my question. And then we can address my supposed age-old heresy.
Did Moses or David cease to be human when they died? Yes or no.
You are the one that demanded an answer to your shibboleth.