First Things has an article on their website [and in the April issue] regarding religious themes in science fiction, that mention a number of my favorite authors and books. These include Jerry Pournelle's and Larry Niven's Inferno and Escape from Hell, James Blish's A Case of Conscience [although not Black Easter!], Michael Flynn's Eifelheim, and Walter M. Miller's A Canticle for Liebowitz.
Shocking to me is the absence of Tim Powers, but he is often neglected in such lists despite having personally known Philip Dick, who is mentioned here.
I like the bit about the Singularity, especially the bit about how it is hard to tell the difference between an exponential growth curve and sigmoidal one when you are in the middle of it. The Singularity really is the Rapture for nerds, and good luck with that one boys.
I think I may have to check out some of the books mentioned in this article.
h/t Michael Flynn