'Man of God' in the Bible

And the woman came and told her husband, saying, A man of God came to me, and His face was like the face of an Angel of God, very terrifying. But I did not ask Him where He came from, neither did He tell me His name.

And Manoah prayed to Jehovah and said, O, my Lord, let the Man of God, whom You sent, come again to us and teach us what we shall do to the boy that shall be born.