'Prophet' in the Bible

All Israel from Dan to Beer-sheba knew that Samuel was a confirmed prophet of the Lord.

Formerly in Israel, a man who was going to inquire of God would say, “Come, let’s go to the seer,” for the prophet of today was formerly called the seer.

Then the prophet Gad said to David, “Don’t stay in the stronghold. Leave and return to the land of Judah.” So David left and went to the forest of Hereth.