1 Samuel 10
5 "After that you will go to Gibeah of God, where there is a Philistine outpost. As you approach the town, you will meet a procession of prophets coming down from the high place with lyres, tambourines, flutes and harps being played before them, and they will be prophesying. 6 The Spirit of the LORD will come upon you in power, and you will prophesy with them; and you will be changed into a different person. 7 Once these signs are fulfilled, do whatever your hand finds to do, for God is with you.
1 Samuel 19
18 When David had fled and made his escape, he went to Samuel at Ramah and told him all that Saul had done to him. Then he and Samuel went to Naioth and stayed there. 19 Word came to Saul: "David is in Naioth at Ramah"; 20 so he sent men to capture him. But when they saw a group of prophets prophesying, with Samuel standing there as their leader, the Spirit of God came upon Saul's men and they also prophesied. 21 Saul was told about it, and he sent more men, and they prophesied too. Saul sent men a third time, and they also prophesied. 22 Finally, he himself left for Ramah and went to the great cistern at Secu. And he asked, "Where are Samuel and David?"
"Over in Naioth at Ramah," they said.
23 So Saul went to Naioth at Ramah. But the Spirit of God came even upon him, and he walked along prophesying until he came to Naioth. 24 He stripped off his robes and also prophesied in Samuel's presence. He lay that way all that day and night. This is why people say, "Is Saul also among the prophets?"