1 Samuel 16:11-13

11And Samuel said to Jesse, Are here all thy children? And he said, There remaineth yet the youngest, and, behold, he keepeth the sheep. And Samuel said to Jesse, Send and bring him: for we will not sit down till he hath come here.1 12And he sent, and brought him in. Now he was ruddy, and also of a beautiful countenance, and a good appearance. And the LORD said, Arise, anoint him: for this is he.2 13Then Samuel took the horn of oil, and anointed him in the midst of his brethren: and the Spirit of the LORD came upon David from that day onward. So Samuel arose, and went to Ramah.