While they were going down to the edge of town, Samuel said to Saul, “Tell the servant to go on ahead of us.” So he did. ¹  Samuel then said, ²  “You remain here awhile, so I can inform you of God’s message.”

So Saul sent messengers to capture David. When they saw a company of prophets prophesying with Samuel standing there as their leader, the spirit of God came upon Saul’s messengers, and they also prophesied.