1 Samuel 10:10-12

And when they came thither to the hill, behold, a band of prophets met him; and the Spirit of God came mightily upon him, and he prophesied among them. And it came to pass, when all that knew him beforetime saw that, behold, he prophesied with the prophets, then the people said one to another, What is this that is come unto the son of Kish? Is Saul also among the prophets? And one of the same place answered and said, And who is their father? Therefore it became a proverb, Is Saul also among the prophets?