1 Samuel 10:9 – 10 New International Version (NIV)
9 As Saul turned to leave Samuel, God changed Saul’s heart, and all these signs were fulfilled that day.
10 When he and his servant arrived at Gibeah, a procession of prophets met him; the Spirit of God came powerfully upon him, and he joined in their prophesying.
Read all of 1 1 Sameul 10 for full context.