3Ne Ch29-30

The truth about the Book of Mormon is that is is a sign that signaled the beginning of the Lord starting to gather Israel and will be used in that work. Anyone who rejects the revelations in the latter days will be cursed because of their stubbornness. All the Gentiles who repent and come to Christ will be part of the covenant house of Israel in the last days.
The Lord knew the right time to bring all the records that Mormon wrote to the Gentiles so we can know of the covenants with the Father and the gathering which is taking place (v1). The purpose of the scriptures is to know the words of the Lord and believe in His work and He will remember His covenant with the people (v2-3). He will be known and have the sword of justice in His hand to curse those that spurn His doings, and this is a warning to all who deny the Lord and His power just to get gain in the world because He will be silenced by the Lord (v4-8).
I feel bad for those who do not believe in the power of God because He will com and execute judgment to fulfill the covenant made to the house of Israel to restore them to their inheritance (v9). To all the Gentiles in the last days of the earth, hear the words of Christ because they are specifically to you from God through Mormon (v1): Turn from your wicked ways and come to Christ to be baptized so you can receive remission for sins and the Holy Ghost, and then you will be numbered with the covenant people of God (v2).