1 Samuel 10:6

“Then you will go on forward from there, and you will come to the oak of Tabor. Three men will meet you there going up to God to Bethel: one carrying three young goats, and another carrying three loaves of bread, and another carrying a container of wine.

They will greet you and give you two loaves of bread, which you shall receive from their hand.

“After that you will come to the hill of God, where the garrison of the Philistines is; and it will happen, when you have come there to the city, that you will meet a band of prophets coming down from the high place with a lute, a tambourine, a pipe, and a harp before them; and they will be prophesying.

Let it be, when these signs have come to you, that you do what is appropriate for the occasion; for God is with you.

“Go down ahead of me to Gilgal; and behold, I will come down to you to offer burnt offerings and to sacrifice sacrifices of peace offerings. Wait seven days, until I come to you and show you what you are to do.”

It was so, that when he had turned his back to go from Samuel, God gave him another heart; and all those signs happened that day.