1 Samuel 10:6-10

6Then the Spirit of the Lord will come upon you mightily, and you will prophesy with them, and you will be changed into another man.

7When these signs come to you, do for yourself whatever the situation requires, for God is with you.

8You 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.”

9Then it happened when Saul turned his back to leave Samuel, God changed his heart; and all those signs came to pass that day.

10When 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.