Thanks for your thoughtful response.

"What can we make of the question posed by the Saducees about our nature in the resurrection and Jesus’ response that some ‘are like the angels of God in heaven’?"

I suggest that it means that, once someone has gone through the process of spiritual death and rebirth, as referenced by Jesus in his conversation with Nicodemus in John's gospel, then through spiritual practice ascended and then reconnected with one's soul in its pure form, then one will be as an angel in heaven. This is the teaching of the Perennial Philosophy, as in Hinduism, Buddhism, Kabbalah etc.