15 Now the day before Saul came, the Lord had revealed to Samuel: 16 "Tomorrow about this time I will send to you a man from the land of Benjamin, and you shall anoint him to be ruler over my people Israel. He shall save my people from the hand of the Philistines; for I have seen the suffering of my people, because their outcry has come to me." 17 When Samuel saw Saul, the Lord told him, "Here is the man of whom I spoke to you. He it is who shall rule over my people."
Matthew Henry's Commentary on 1 Samuel 9:15-17
Commentary on 1 Samuel 9:11-17
(Read 1 Samuel 9:11-17)
The very maid-servants of the city could direct to the prophet. They had heard of the sacrifice, and could tell of the necessity for Samuel's presence. It is no small benefit to live in religious and holy places. And we should always be ready to help those who are seeking after God's prophets. Though God had, in displeasure, granted Israel's request for a king, yet he sends them a man to be captain over them, to save them out of the hand of the Philistines. He does it, listening graciously to their cry.