Samuel 9

God works in mysterious ways. This is evident because of the fact that many times He sends one person to another person to answer a prayer, or to warn or expound, or to exhort or prophesy, and that many times the giver or the receiver of the information doesn't even know that He was either on an errand for God or that God sent someone to minister to him.

Case in point. Saul and his messenger are out on an errand for his father, looking for lost livestock. It turns out that God was guiding Saul to Samuel for a visit:

15 ¶Now the Lord had told Samuel in his ear 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 captain over my people Israel, that he may 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, the Lord said unto him, Behold the man whom I spake to thee of! this same shall reign over my people.

How many times have I been ministered to by a man or woman sent to me by God and I didn't even know it! How many times have I been the one to minister? How can I be more aware of the Lord's hand going forward?

1 Samuel 9.