And the LORD instructed Gad, David's seer,

1 Samuel 9:9
(Formerly in Israel, a man on his way to inquire of God would say, "Come, let us go to the seer." For the prophet of today was formerly called the seer.)

1 Samuel 22:5
Then the prophet Gad said to David, "Do not stay in the stronghold. Depart and go into the land of Judah." So David left and went to the forest of Hereth.

2 Samuel 24:11
When David got up in the morning, a revelation from the LORD had come to Gad the prophet, David's seer:

1 Chronicles 21:10
"Go and tell David that this is what the LORD says: 'I am offering you three options. Choose one of them, and I will carry it out against you.'"

1 Chronicles 25:5
All these sons of Heman the king's seer were given him through the promises of God to exalt him, for God had given Heman fourteen sons and three daughters.

1 Chronicles 29:29
Now the acts of King David, from first to last, are indeed written in the Chronicles of Samuel the Seer, the Chronicles of Nathan the Prophet, and the Chronicles of Gad the Seer,

And the LORD spoke to Gad, David's seer, saying,