1 Samuel 10:8-10

Amplified Bible

⁸ You shall go down ahead of me to Gilgal; and behold, I will be coming down to you to offer burnt offerings and to sacrifice peace offerings. You shall wait seven days until I come to you and show you what you must do.”

⁹ Then it happened when Saul turned his back to leave Samuel, God changed his heart; and all those signs came to pass that day. ¹⁰ When they came to the hill [Gibeah], behold, a group of prophets met him; and the Spirit of God came on him mightily, and he prophesied [under divine guidance] among them.