1 Samuel 10:5-6, 10-13

After that thou shalt come to the hill of God, where is the garrison of the Philistines: and it shall come to pass, when thou art come thither to the city, that thou shalt meet a company of prophets coming down from the high place with a psaltery, and a tabret, and a pipe, and a harp, before them; and they shall prophesy: and the Spirit of the LORD will come upon thee, and thou shalt prophesy with them, and shalt be turned into another man.

And when they came thither to the hill, behold, a company of prophets met him; and the Spirit of God came upon him, and he prophesied among them. And it came to pass, when all that knew him beforetime saw that, behold, he prophesied among 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, But who is their father? Therefore it became a proverb, Is Saul also among the prophets? And when he had made an end of prophesying, he came to the high place.