'Prophet' in the Bible

And all Israel from Dan [in the north] to Beersheba [in the south] knew that Samuel was appointed as a prophet of the Lord.

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

Then the Spirit of the Lord will come upon you mightily, and you will prophesy with them, and you will be changed into another man.

Then the prophet Gad said to David, “Do not stay in the stronghold; leave, and go into the land of Judah.” So David left and went into the forest of Hereth.