This isn't from ACIM but from a book called the Holy Spirit's Interpretation of the New Testament, which was scribed by an ACIM student. It's an incredible resource and in my opinion, every course student should have a copy.
I'm not sure if we're allowed to post links to Amazon here, but here it is:
https://www.amazon.com/Holy-Spirits-Interpretation-Testament-Understanding-ebook/dp/B005KSGFQ0
Try this one too if you can: https://www.amazon.fr/Holy-Spirits-Interpretation-Testament-Understanding-ebook/dp/B005KSGFQ0
Ah yes, this is a common dilemma faced by truth seekers. Here, this will help:
ALL religions are cults because they are led by other People who tell you what to think. Anytime others tell you what to think, they have formed a cult.
Jesus never asked us to make a religion.
Spirituality is when you, as an individual, decide what is real or not. It is NOT a religion and Spiritualists are independent thinkers who decide for themselves what to believe. This is the true way and this is how Jesus was.
The easiest way to decipher the truth is to weight it on your heart. God gave us a truth meter in our heart to weight truth VS lies. Do this even when reading the Bible because the Bible has been remixed many times for mind control purposes.
The truth is always expanding. There is too much knowledge out there. Our goal is to keep learning. False beliefs can cause major or minor problems but when they do, you can learn that maybe something much be altered in belief. Think about what a perfect Life made by God should look like. That is the truth. You are digging through many illusions to find the truth. This is part of the game of life.
The Christians adopted Judaism as the Old Testament because Judaism was the most modern religion 3000 years ago when Moses basically jump started it with Monotheism.
No Christianity has become the most modern mostly because of the the Jesus factor but the next level is "Kingdom of Heaven On Earth" which means the Churches, who are the Caccoons of the Kingdom Of Heaven On Earth, will "explode" spiritually speaking and spread the Kingdom Of Heaven on Earth. How? Well, once People truly realize that God is everywhere, they believe they are with God all the time. God isn't only at Church. God is here now, inside of us and outside. Once the world fully adopts this belief, all religions fall and we move into a better understanding. Of course, not all humans will follow this path at first but in the long run this will be the case.
There is a reason that this 3D world has little proof of God. This is not common. It is a unique experience where we have to work with faith alone without evidence. Usually there is plenty of evidence but if you can manage to build a successful life on Faith alone, it means you are truly a winner. That level of faith will stick with you forever usually. It's all a game so some players do better than others and that is what you want to be.
So basically, stop listening to everyone and listen to your heart. It is a portal to God. The more you silence your mind, the more you can hear the impulses that God sends. Those impulses are your navigation system to life. If you only listen to every impulse, no matter how bold, you will become a full blown life success. (sometimes it asks people to drop a well paying job and leads them to an even better job for example and this takes courage).
Alright, here's a book recommendation that will teach you exactly how to do this. You will love it and it will make your life much easier: https://www.amazon.com/dp/B005KSGFQ0/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1