1 Samuel 10:4-8

And they will greet you and give you two loaves of bread, which you will accept from their hand.

Afterward you will come to the hill of God where the Philistine garrison is; and it shall be as soon as you have come there to the city, that you will meet a group of prophets coming down from the high place with harp, tambourine, flute, and a lyre in front of them, and they will be prophesying.

Then the Spirit of the Lord will rush upon you, and you will prophesy with them and be changed into a different man.

And it shall be when these signs come to you, do for yourself what the occasion requires, because God is with you.

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