As an example of his reading, I had a look for that interview when Trump was asked what his favorite Bible verse is, and he vaguely answered " 2 Corinthian I would say".
But I found the web is full of sites with prayers for Trump. About how he is the anointed one and all that. Anyway, he did update his favorite bible verse to show how "Bible smart" he is. How well read. This from a 2016 interview:
"Well, I think many. I mean, when we get into the Bible, I think many, so many. And some people, look, an eye for an eye, you can almost say that, That's not a particularly nice thing. But you know, if you look at what's happening to our country, I mean, when you see what's going on with our country, how people are taking advantage of us, and how they scoff at us and laugh at us. And they laugh at our face, and they're taking our jobs, they're taking our money, they're taking the health of our country. And we have to be very firm and have to be very strong. And we can learn a lot from the Bible, that I can tell you."
Brain the size of a planet.