'Prophet' in the Bible

All Israel from Dan to Beersheba realized that Samuel was faithful as a prophet to Yahweh.

(Formerly in Israel, when a man went to inquire of God, he would say: "Come, let us go up to the seer." For the prophet of today was formerly called a seer.)

Then Gad the prophet said to David, "You should not stay in the stronghold; leave and go into the land of Judah." So David left and came [to] the forest of Hereth.