'Prophet' in the Bible

The king said to Nathan the prophet, See now, I am living in a house of cedar, but the ark of God is housed inside the curtains of a tent.

And he sent word by Nathan the prophet, who gave him the name Jedidiah, by the word of the Lord.

And David got up in the morning; now the word of the Lord had come to the prophet Gad, David's seer, saying,