1 Samuel 16

11 And Samuel asked him, "Are these all the sons you have?"

"There is still the youngest," Jesse replied, "but he is tending the sheep."

"Send for him," Samuel replied. "For we will not sit down to eat until he arrives."

13 So Samuel took the horn of oil and anointed him in the presence of his brothers, and the Spirit of the LORD rushed upon David from that day forward. Then Samuel set out and went to Ramah.