Mosiah 25 condenses what I’m sure was quite a few days, if not weeks or months into a neat little bundle.
In the land of Zarahemla are gathered a bunch of new folks. People from the land of Helam, people from the land of Nephi, and mixed in with them are some of the people of Amulon and some of the daughters of the Lamanites that had been kidnapped. A good mix of people from different backgrounds, races and languages.
Mosiah reads all of the plates to the people, they are in awe and wonder. The people are grateful to God for their deliverance. The people who came from shady backgrounds understood where they came from and chose to walk in the light. All of these people were then known as Nephites. When Mosiah finishes his reading, he has Alma speak to the people. Alma preaches repentance and faith unto the people and ensures that they know that they have been delivered out of the hands of the Lamanites by the Lord. King Limhi, who is among this group, wants to be baptized and so do all of his people.
Alma begins to perform baptisms. Each person that was baptized now belonged to the church of God. King Mosiah asked for Alma to establish the church all throughout the land of Zarahemla and then so it was. Alma ordained priest and teachers to maintain the church. Because of the faith of the people, the Spirit was poured over them abundantly and they prospered in Zarahemla.
I write this in the name of Jesus Christ, Amen.