1 Samuel 16:12-13

So Jesse sent for his son and had him brought in. He looked very healthy. He had a fine appearance and handsome features. Then the LORD said, “Get up and anoint him. This is the one.” So Samuel got the animal horn that was filled with olive oil. He anointed David in front of his brothers. From that day on, the Spirit of the LORD came powerfully on David. Samuel went back to Ramah.