One thing that confuses many people are the mixed messages they get from those that supposedly believe the same group – Christians.

Different denominations, doctrines, and belief’s confuse a lost world, especially when each church quotes from the same book.

One group says baptism is essential to salvation and another group says it isn’t. There are the gifts of the Spirit and whether they exist today or have fulfilled their purpose. Is salvation eternal or can it be lost again. Is there only one chance of salvation in this life or do you get another opportunity after death.
Is the rapture a true event and if it is does it happen before the tribulation, during it, or after it?

No matter what you believe you can find someone that will agree with you.

This is not a unique situation. It is something that the early church had to deal with.

Paul wrote to Timothy saying,

And their message will spread like cancer. Hymenaeus and Philetus are of this sort, who have strayed concerning the truth, saying that the resurrection is already past; and they overthrow the faith of some. 2 Tim 2:17-18

To the Galatians he wrote,

I marvel that you are turning away so soon from Him who called you in the grace of Christ, to a different gospel, which is not another; but there are some who trouble you and want to pervert the gospel of Christ. Gal 1:6-7

What we don’t have is an Apostle Paul to explain things today. Even if there were there would still be false messages from others that change the message.

I don’t have that answer to all the Christian denominations except to say read the Bible for yourself. Study the message for yourself. Pray about it for yourself.

If it is possible, as much as depends on you, live peaceably with all men. Rom 12:18