Jesus had admonished the twelve to pray, and reprised for them the prayer-model from the Lord’s Prayer in the Sermon. Here the entire multitude receives that same referential instruction. In this case, however, the reference is to the knocking and opening section of the Sermon.
3 Nephi 14:7-8
7 Ask, and it shall be given unto you; seek, and ye shall find; knock, and it shall be opened unto you.
8 For every one that asketh, receiveth; and he that seeketh, findeth; and to him that knocketh, it shall be opened.
The emphasis here is on the asking and receiving, which was the subject of the knocking saying presented in the Sermon. Once again, this reference indicates that the topics and concepts of the Old World Sermon were presented, but the specifics would have had to have change. It is interesting that in this reference to the Sermon we have the meaning of the knocking saying without the imagery of knocking, which was not part of the Mesoamerican cultural catalog.