Christian Churches base their teachings on the Bible. However, the Bible was written by man, and man chose what books to be included in it. In addition, there are many different translations and interpretations of the Bible. Moreover, many human additions have been made in the course of time. Now that the Mandela Effect is in full swing, we should read the Bible with a grain of salt and ask Jesus to guide us into the truth.
You humans have no guarantee that the Book of Books [the Bible] is protected from change because I do not interfere with people’s free will and can only ever safeguard a presenter of My Word if he commends himself to Me and asks Me to protect him from error. However, you humans are not at risk from misguided thoughts if you spiritually and in truth ask Me to enlighten your spirit, then you will also know where error has crept in. (The Word of God, Proclamation 8872)
But the claim that I Myself protect My pure Word from becoming spoilt is incorrect because this would question the free will of human beings, who can do whatever they want with My spiritual information. And thus you also need to consider, with regards to the Book of Books, that changes have been made in the course of time which I could not prevent, precisely because of human free will. (The Word of God, Proclamation 8872)
But I will always make sure that the light of truth will nevertheless shine for those who desire it. (The Word of God, Proclamation 8872)
The Catholic Church does not base everything she teaches on the Bible. In fact she uses her own doctrines, which may or may not be based on the Bible, and incorporates external ceremonies that are intended to dazzle the eye rather than to affect the heart. In time the Catholic Church has become a powerful religious institution with a following of over a billion people. Not only does the Catholic Church claim to be the only Holy Apostolic Church, but in addition she declares that there is no salvation outside the Catholic Church. It is most unfortunate that Catholics and would-be believers have no idea how the teachings of the Catholic Church came to be.
The people, however, to whom the Gospel was preached were denied the right to form their own opinion and to voice doubts about the absolute truth of what they were taught. Those who deemed themselves spiritual leaders were convinced of their mission and authority and allowed no contradiction whatsoever. And those who were being taught were obliged to accept without scrutiny that everything they were offered was true. It was only possible for the truth to remain pure as long as its guardians were spiritually enlightened. Yet the number of those who were placed into positions of authority without being enlightened by My Spirit soon predominated and all objections by a spiritually awakened person were dismissed. The former grew more powerful and the pure truth became interspersed with error, with ideas which had originated in people’s intellect and were endorsed by them as divine truth. (The Word of God, Proclamation 8375)
You are learning to recognise that My Word has been changed to the extent that it is interpreted and consequently observed differently, that far too little attention is given to what is essential whilst the unessential is emphasised, and thus little spiritual progress will be achieved. (The Word of God, Proclamation 5982)
It is of no use to you humans when you castigate yourselves, when you perform duty bound actions or confess Me with your mouth if you do not recognise the commandment of love first and foremost and act accordingly. You believe that you worship Me with your countless ceremonies, and yet you can only worship Me by doing what I ask of you. (The Word of God, Proclamation 5982)
Jesus has paid the price of our salvation, regardless of whether we believe He is our Saviour or not. One does not need to go to a particular church to find salvation. Proclaiming Jesus is our Saviour and observing His commandments of love will lead us to eternal life.