15 Now Jehovah had revealed unto Samuel a day before Saul came, saying, 16 To-morrow about this time I will send thee a man out of the land of Benjamin, and thou shalt anoint him to be prince over my people Israel; and he shall save my people out of the hand of the Philistines: for I have looked upon my people, because their cry is come unto me. 17 And when Samuel saw Saul, Jehovah said unto him, Behold, the man of whom I spake to thee! this same shall have authority 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.