Now the acts of David the king, first and last, behold, they are written in the book of Samuel the seer, and in the book of Nathan the prophet, and in the book of Gad the seer,
Samuel the seer ... Nathan the prophet, and ... Gad the seer. The three words, Roeh, Nabi, and Chozeh, are here brought together and apparently contrasted (see the note at 1 Samuel 9:9).