[Book of Mormon] Mosiah12:33
But now Abinadi said unto them: I know if ye keep the commandments of God ye shall be saved; yea if ye keep the commandments which the Lord delivered unto Moses in the mount of Sinai saying:…
Funny, the other day I asked a Mormon, “if God wiped your slate clean today, do you think you could go the rest of the day without breaking one of his Ten Commandments”? She answered yes. I asked her if she knew the Ten Commandments and the answer was no. She was guessing.
Of course Mormon’s break the first one right off, by having a different God than the one revealed in the Bible, denying the Triune God. So good luck with the rest. They then break the second commandment by invoking the name of Jesus Christ, but meaning by that a person who is not God, but became a god. The list goes on.
However, it is true if you keep his commandments you will be saved. The problem comes in with the realization that you can’t. We are all guilty of breaking them. And the only remedy is faith in Jesus Christ who as the God/man died for the sins of the world on the cross and rose again on the third day. You have an either/or proposition here. Law or Gospel. It is either by Christ’s propitiation for your sins, or it is up to you to do a lot better than you have.