Benjamin had earlier used the social concept of master and servant to describe his relationship to his people. He then moved that relationship to describe the relationship between Jehovah and his people. Here, Benjamin has declared that they have covenanted to have a renewed relationship to Jehovah as their master. They now have obligations. That obligation is service, for they will not understand Jehovah’s covenant with them if they do not serve Jehovah, the same as any other servant attempting to master the relationship with which they have been acquainted.
Right after stating that they should serve Jehovah, Benjamin returns to the statement that “when ye are in the service of your fellow beings ye are only in the service of your God” (Mosiah 2:17). He describes how they are to serve their master, and the descriptions are of their service to one another.
In verse 15 he asks the people to be "steadfast and immovable.” These are covenant words and meanings which later will be described as faith. Here the clear meaning is more “demanding of action.”
In the end, this new covenant provides benefits: “that you may be brought to heaven, that ye may have everlasting salvation and eternal life.” The testificatory Amen closes the chapter and the record of the speech. From here, Mormon moves to a narration of the aftermath of the speech.