I have a lot of Mormon friends and family.
Hi, Your profile says, “becoming Catholic”. Welcome!
They claim that the Book of Mormon contains the fullness of the gospel. They also say that it is the most correct book and that man can get closer to God by abiding by its precepts than any other book. How is this even so?
Are you asking, “how can they believe that?” I don’t know.
Well, the Book of Mormon was brought to Joseph Smith by the angel, Moroni. If Joseph Smith had been a devout Christian, he would have remembered that the Bible says:
Galatians 1:8 But though we, or
an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
And he would have cast that book into the fire. But he didn’t. And thus, many people have been led astray.