2 Samuel 24:11
For when David was up in the morning, the word of the LORD came to the prophet Gad, David's seer, saying,
Torrey's Topical Textbook—AKJV

2 Chronicles 29:25
And he set the Levites in the house of the LORD with cymbals, with psalteries, and with harps, according to the commandment of David, and of Gad the king's seer, and Nathan the prophet: for so was the commandment of the LORD by his prophets.
Torrey's Topical Textbook—AKJV

2 Chronicles 35:15
And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the porters waited at every gate; they might not depart from their service; for their brothers the Levites prepared for them.
Torrey's Topical Textbook—AKJV