I've always found King's ideas about religion muddled at best. He's clearly a spiritual person. A side of him that emerged in his writing after his stint in rehab. He talks frequently of "The White" and "Order" as opposed to the forces of darkness "Todash darkness" and "The Random". However, the women of faith in his books are puritanical, oppressed and wound very tight. They are judgmental in the extreme, unattractive and matronly. They are all priggish and prude. The men are oscilate between weaklings who fall back on faith as a last resort against dispair or give up entirely (Callahan). In the worst example, one of them was a lycanthrope that terrorized the town.
If I had to guess, the man likes God (or "Powerful Goodness" as Thoreau called it) but hates religion.