In the 1820's, 1200 years after "Gabriel" appeared to the man in the Middle East, another "angel" appeared to a man here in the United States. Through a long complicated process of revelations, a long complicated understanding of who Jesus is evolved.
Yet if you ask these people today what they believe, their answers sound deceptively like those of the Christian Church. For example, they believe in the Father, the Son , and the Holy Ghost.
But they do not believe in a Trinity.
They believe that God and Jesus were separate physical people who lived on the earth. God was Jesus' father, and both men died.
Jesus is to them the literal Son of God and God's wife, begotten in pre-existent times. Jesus is to them the brother of Lucifer and all spirits. He is one of three separate gods, and the first one to receive a spirit body.
A very confusing Jesus, and a very powerless Jesus. Why powerless? Because in this religion, what Jesus did on the cross is not enough. You will only be saved if you are obedient to all their laws. That sounds like Moses, not Jesus. In Jesus, the real Jesus, we are saved by faith, and works follow.
In their religion, and most religions of the world, you are saved by trying real hard, and if you don't try hard enough, you don't make it. Very insecure faith.
The reason this religion is so confusing is because it has a different source of authority. They believe the Bible to be the Word of God only where it was translated correctly! And they decide where it is translated correctly. They also have another set of books that they believe are of equal value.
That problem of authority is the same in most religions, whether Mormon or Islamic or in the church of Rome or the Orthodox church,. They all claim to believe the Bible... up to a point. But they have these other books, too.
Let's keep it simple, regarding authority: God founded His church on His Son and His Son's apostles. Those apostles passed on through their writings, the books we now call the Old and New Testaments, guided by the Holy Spirit, over these hundreds of years, all the Truth the church would ever need.
I have good news for you. No angel of God has come along and changed things. Paul said it: "Though we or an angel from Heaven preach any other Gospel than the one I have preached, let him be accursed." He not only said it, he said it twice! He knew that angels would be released to deceive the world's people. He knew they would promote another Gospel, which is not a Gospel at all.
It's bad news to believe your works are going to save you. You've all lived long enough to know you cannot keep God's laws. Don't be deceived! You need a Savior from sin who offers salvation freely, and motivates you from the inside to keep His Word. You need Christ and His Holy Spirit, not a religion that came from men and angels!
No other Book has been given from Heaven for us. God's Word the Bible is as secure today as it was when it first came from the mouths and the pens of the apostles. For the church to prosper, it needs to return to what the apostles said, and preach the same Jesus the apostles preached.