So when Samuel saw Saul, the LORD said to him, "There he is, the man of whom I spoke to you. This one shall reign over My people."
1 Samuel 9:17
Surrounding context
9:16 "Tomorrow about this time I will send you a man from the land of Benjamin, and you shall anoint him commander over My people Israel, that he may save My people from the hand of the Philistines; for I have looked upon My people, because their cry has come to Me."
9:17 So when Samuel saw Saul, the LORD said to him, "There he is, the man of whom I spoke to you. This one shall reign over My people."
9:18 Then Saul drew near to Samuel in the gate, and said, "Please tell me, where is the seer's house?"