'Seer' in the Bible

All those chosen to be gatekeepers at the thresholds were 212. They were enrolled by their genealogies in their villages [around Jerusalem], these men [whose grandfathers] David and Samuel the seer had appointed to their official duty.

And the Lord said to Gad, David’s seer,

All these [men] were the sons of Heman the king’s seer to exalt him in accordance with the words of God; for God gave Heman fourteen sons and three daughters.

Also all that Samuel the seer had dedicated, and Saul the son of Kish, Abner the son of Ner and Joab the son of Zeruiah, everyone who had dedicated anything, this was in the care of Shelomoth and his relatives.

Now the acts of King David, from first to last, are written in the chronicles (records) of Samuel the seer, in the chronicles of Nathan the prophet, and in the chronicles of Gad the seer,