I Corinthians 14 talks about all prophesying and the secrets of an unbeliever or uninstructed individual's hearts are made manifest, and he falls down on his face and says that God is truly among you. I don't see a problem with really specific words of knowledge or prophecies. There are examples in the Bible.Jesus told Nathanael that before Philip called him, when he was under the fig tree, Jesus saw Him. Nathanael must have been under a fig tree before, because on hearing that, He said Jesus was the Son of God and the King of Israel. The woman at the well perceived that Jesus was a prophet after He told her about the five husbands she had had and the one she had who was not her husband. One of the prophets knew the conversations that were spoken in a foreign king's bedroom