My blog post on Come Follow Me: D&C 46-48
Excerpt:This section discusses the importance of allowing people into most of our meetings. There were some who felt that only members should attend the Sacrament meeting. In this, the Lord clarified that peaceable people should be invited and welcomed into our open meetings.
“But ye are commanded in all things to ask of God, who giveth liberally; and that which the Spirit testifies unto you even so I would that ye should do in all holiness of heart, walking uprightly before me, considering the end of your salvation, doing all things with prayer and thanksgiving, that ye may not be seduced by evil spirits, or doctrines of devils, or the commandments of men; for some are of men, and others of devils.” (vs 7)
Note that there are doctrines of God, men and devils. (see also 3 Ne 27:11). Only the doctrines and commandments of God can bring us eternal life and joy. As Jesus notes in 3 Ne 27, the doctrines and commandments of men and devils will bring temporary happiness, but eventually bring us down into misery. The world is swirling today with various beliefs. Whether they be political, social, emotional, or intellectual, if they are not based on the teachings of Christ, they will fail.