2 Samuel 24:11

(Formerly in Israel, when a man went to inquire of God, he used to say, “Come, and let us go to the seer”; for he who is called a prophet now was formerly called a seer.)

And the prophet Gad said to David, “Do not stay in the fortress; go, and enter into the land of Judah.” So David went and entered into the forest of Hereth.

“When the heavens are shut up and there is no rain, because they have sinned against You, and they pray toward this place and confess Your name and turn from their sin when You afflict them,

Then Satan stood up against Israel and incited David to number Israel.

And Yahweh spoke to Gad, David’s seer, saying,

All these were the sons of Heman the king’s seer to exalt him according to the words of God. So God gave fourteen sons and three daughters to Heman.

He then caused the Levites to stand in the house of Yahweh with cymbals, with harps, and with lyres, according to the command of David and of Gad the king’s seer, and of Nathan the prophet; for the command was from Yahweh by the hand of His prophets.