'Prophet' in the Bible

that the king said unto Nathan the prophet, See now, I dwell in a house of cedar, but the ark of God dwelleth within curtains.

and he sent by the hand of Nathan the prophet; and he called his name Jedidiah, for Jehovah's sake.

And when David rose up in the morning, the word of Jehovah came unto the prophet Gad, David's seer, saying,