OK, this is embarrassing
I have been using the word ‘immanent’ in the sense of ‘close at hand’. Generally, it’s been in the sense of Paul thinking that the Parousia is ‘immanent’, as in, ‘it will occur shortly’.
The word I should have been using is imminent. That is the proper word for “the Parousia is close at hand. It is imminent.”
I did realize there were two separate words, but I thought I was using the proper one. “Immanent” means something that is
existing or operating within; inherent. “the protection of liberties is immanent in constitutional arrangements”
In a religious sense, it means that the supreme deity is part of creation, not separate from it. This how a pantheist would describe the supreme deity. OTOH, Christianity believes in a transcendent God, one that is separate from creation. Joseph Campbell uses this dichotomy to great effect (not ‘affect’!) in his magisterial The Masks Of God series.