After that thou shalt come to the hill of God, where is the garrison of the Philistines: and it shall come to pass, when thou art come thither to the city, that thou shalt meet a company of prophets coming down from the high place with a psaltery, and a tabret, and a pipe, and a harp, before them; and they shall prophesy:

After that you will come to Gibeah of God, where the Philistines have an outpost. As you approach the city, you will meet a group of prophets coming down from the high place, preceded by harps, tambourines, flutes, and lyres, and they will be prophesying.

Read 1 Samuel 10