What is the best app to download or stream ebook and audiobooks that focus on religion specifically Christian?

I prefer audiobook simply because i can hear them even when im lying down or working but actually some research shows that reading is more effective in understanding and remembering content.

Best audiobook player - Smartaudiobook player
---a problem: you cant download directly from the app, you download it from somewhere else (on the phone or the PC and then copy paste to the designated audiobook folder)

What you need maybe: a podcast player - example Podcast Addict - you can download stuff directly from the app. So much of the good content.

used a couple of different ones but found that Smart Audiobook player is very nice since I have downloaded all my audiobooks already. I have a large library on my laptop and like the way this app organizes and keeps track of things.