As for the prophet who prophesies of peace, when the word of the prophet comes to pass, the prophet will be known as one whom the Lord has truly sent (Jeremiah 28:9).
The world is full of many self-proclaimed prophets with special messages from God. History is filled with those who spoke of things to come, and set dates, only to be proved wrong by actual events. Strangely, most of these false prophets go on to even greater fame. Joseph Smith of the Mormons, Ellen G White of the Adventists, William Branham of the Latter Rain Movement, and Benny Hinn of the Charismatic Movement are all examples. Each spoke of events to come that did not take place when or as they predicated. That makes them false prophets.
Today, God does not speak through prophets.
God, who at various times and in different ways spoke in time past to the fathers by the prophets, has in these last days spoken to us by His Son (Hebrews 1:1-2). In the past, God spoke by prophets, today we know God’s desires and ways, not because of a new prophet in a church near you, but because He has spoken in the Person of Jesus, recorded for us in the Bible.
As Christians, we have no need to seek out a “new word” when we possess the prophetic word made more sure in the pages of the Bible (2 Peter 1:19). If you want to know what God says, read His Word.