Verse 31: "...Wherefore, if ye shall be obedient to the commandments, and endure to the end, ye shall be saved at the last day. And thus it is. Amen."
A beautiful promise. If we are doing our best to obey the commandments and endure to the end, we will be saved. And because the promise comes from God, we can know that He will keep His end of the bargain no matter what. It's up to us to keep our end of the deal.