'Prophet of the Lord' in the Bible

But Jehoshaphat said, Is there not here a prophet of the LORD besides, that we might inquire of him?

But a prophet of the LORD was there, whose name was Oded: and he went out before the army that came to Samaria, and said unto them, Behold, because the LORD God of your fathers was angry with Judah, he has delivered them into your hand, and you have slain them in a rage that reaches up unto heaven.