While David was thus living in the retirement of his humble shepherd’s life, the Lord God was speaking about him to the prophet Samuel. “And the Lord said unto Samuel, How long wilt thou mourn for Saul, seeing I have rejected him from reigning over Israel? fill thine horn with oil, and go, I will send thee to Jesse the Bethlehemite: for I have provided Me a king among his sons.... Take an heifer with thee, and say, I am come to sacrifice to the Lord. And call Jesse to the sacrifice, and I will show thee what thou shalt do: and thou shalt anoint unto Me him whom I name unto thee. And Samuel did that which the Lord spake, and came to Bethlehem. And the elders of the town trembled at his coming, and said, Comest thou peaceably? And he said, Peaceably.” 1 Samuel 16:1~5L. The elders accepted an invitation to the sacrifice, and Samuel called also Jesse and his sons. The altar was built and the sacrifice was ready. All the household of Jesse were present, with the exception of David, the youngest son, who had been left to guard the sheep, for it was not safe to leave the flocks unprotected.