Reddit mentions of A Primer of Ecclesiastical Latin

You seem to be posting a lot of questions regarding Latin, I'd suggest posting over on r/latin where they have a lot of great Latinists who can help you out. I'd also suggest you check out Latina Ecclesia that was produced by one user from r/Catholicism on how to do Church Latin. I'd also suggest picking up A Primer of Ecclesiastical Latin by John Collins and maybe considering some of the resources by The Family of St. Jerome, a lay association of Catholics dedicated to preserving and advancing Ecclesiastical Latin for devotional and church practices. Some of their material has been reviewed by a user here who recommends them. They have a DVD course where you would be able to hear accurate pronunciation of Latin.

As for pronouncing your r's, you're going to want to trill your r's slightly. You're not going to roll your r's deeply as in Spanish, but there is a roll. To practice, try saying the word right and place an "h" in front. This will allow you to begin to practice moving your tongue to perform the rolled r sound.

The bible was translated from Greek!

If you're still interested here's an awesome book:

http://www.amazon.com/Primer-Ecclesiastical-Latin-John-Collins/dp/0813206677

Collin's Ecclesiastical Latin will probably be an excellent start for you, along with its accompanying answer key.

Even though the grammar will be mostly review, the vocabulary is geared toward ecclesiastical readings.

Aside from that, also consider Sidwell's Medieval Latin. The back of the book contains a guide to the most common idiosyncracies of medieval and later church latin.

I used A Primer of Ecclesiastical Latin for a time in college. I think it's more focused around church latin post 1000, if I recall correctly, but it probably comes as close as anything would to what you want. It also has lessons that would enable you to study on your own.

Not free, but a friend of mine taught herself using this book. Used copies are pretty cheap. I've been meaning to get one myself once I have the time to actually use it.

Duolingo hope to release a Latin course on September the 15th. I hope the beginning of your Latin studies won't prove too sorrowful. >!(Sept. 15th is the Feast of Our Lady of Sorrows. Not funny if you have to explain it I guess...)!<

What are your reasons for wanting to learn Latin? If it's mainly for Christian texts, the best textbook is Collins's Primer.

Books are good too. I think the organization of this one is excellent
Collin's Primer of Ecclesiastical Latin
https://www.amazon.com/Primer-Ecclesiastical-Latin-Collins/dp/0813206677/ref=sr_1_1?ie=UTF8&qid=1487218100&sr=8-1&keywords=collins+ecclesiastical+latin

Granted, this is church Latin. It may be the flavor for you, or not depending on your interests

Pay no attention to that Redditor behind the curtain. Learn Latin, and if you're learning it because of its religious association, teach yourself from Collins or Scanlan & Scanlan (two volumes).

This is a great book if you have some extra cash.

LINKY

The late great John F. "Jack" Collins, an adjunct at the Brooklyn College Classics Department who taught at the Latin/Greek Institute, wrote A Primer of Ecclesiastical Latin, which might be a good way to re-introduce yourself to Latin from a different period.