(Proverbs 31:1 KJV) The words of king Lemuel, the prophecy that his mother taught him.
How is it possible to teach a “prophecy” (oracle NASB) (4853b)? We tend to think of this as prophecy which involves predictions about the future. We also tend to think of it as a gift that is given by the Holy Spirit. In reality the major part of an oracle or prophecy is what we would consider every day preaching. It is taking the recorded truth of Almighty God and applying it to the everyday lives of ordinary people. Just about anyone can be taught to do this. Some will be better than others but most can learn.
This is a specific job of parents. Here the mother (517) is mentioned. It could apply to any relative and to friends. Obviously it involves preachers and teachers.
So? You prepare people to understand how to live their lives. We do it by example at all times but there are also times we can expect to talk about it. Prepare. Be ready.