You do not need to be a prophet to hear from God! But God has given the Prophetic Ministry to confirm what you have already heard from him in the Spirit. Have you been relying on prophetic words from others for direction in your life? Knowing the will of God is one of the blessings available to you as an ordinary believer. What you receive from the Scriptures and the Prophetic Ministry are simply the 'cherry on top of the cake'.
(Extract From The Way of Blessing) Role of Prophetic Ministry There are other ways that you can know the will of God, because sometimes the Scripture is not totally clear on the exact details of your circumstances. Although you can find from the Word a general principle of the will of God, perhaps there are diversities in your circumstances that you need to know a bit more about.
God has given the Prophetic Ministry to give confirmation. In the Old Testament people could not hear from God. They had to go to the prophet and say, "Prophet, seer, please hear from God. See what God shows you, and you tell me what God says about me." But in the New Testament the Spirit of God dwells inside each one of us. The Spirit of God is in you, and He can speak through you.
So as it rises up in your spirit and you feel God is telling you something, He will give you confirmation through a prophet that He has raised up. He will use somebody else and speak a Word through them, a prophetic word that confirms to your heart something that you suspected already but were not sure of.