He wanted to tell Bruce to keep praying, that she must still be thinking about things. Maybe the invasion of the house had made her feel vulnerable. Maybe she was getting the point that the world was much more dangerous now, that there were no guarantees, that her own time could be short. But Rayford also knew he could offend her, insult her, push her away if he used this situation to sic Bruce on her. She had enough information; he just had to let God work on her.
Trying to figure out if Chloe's conversion will be resolved in this book, or if that'll be her arc for the whole series. My guess is that she gets saved in book 1, then fridged in book 3, because the author will have discovered that she had nothing to do in book 2. My second guess is that Rayford will die in book 2, but he'll get the honorable sacrifice treatment. That will free up space for Chloe to become a lead in the rest of the series. She'll still be second fiddle to Buck, though, because of course she would.