Good question. The gifts of ‘a word of knowledge’ and ‘a word of wisdom’ are considered part of the gifts that have ceased with the Apostolic age. Peter for example was given Knowledge about Ananias and Saphira when they held back a portion of money on a piece of property they had sold. This Knowledge was given to Peter.

As for the Holy Spirit’s Teaching, He is active in teaching God’s Word through illumination, meaning the more of God’s word you read and meditate on, the clearer and more understandable it becomes.

The Holy Spirit also helps us to discern false prophets. How does He do that? By giving us discernment to compare what Scripture says with what someone who claims to be speaking for God says. If the two line up, then the person is speaking truth. If however they don’t line up, then the person is not speaking the truth.

Unfortunately, there is a huge lack of discernment when it comes to Biblical Christianity, as in what the Bible (God’s inerrant, infallible Word) says.