I Samuel 16:1-5

Now the LORD said to Samuel, “How long will you mourn for Saul, seeing I have rejected him from reigning over Israel? Fill your horn with oil, and go; I am sending you to Jesse the Bethlehemite. For I have provided Myself a king among his sons.” And Samuel said, “How can I go? If Saul hears it, he will kill me.” But the LORD said, “Take a heifer with you, and say, ‘I have come to sacrifice to the LORD.’ Then invite Jesse to the sacrifice, and I will show you what you shall do; you shall anoint for Me the one I name to you.” So Samuel did what the LORD said, and went to Bethlehem. And the elders of the town trembled at his coming, and said, “Do you come peaceably?” And he said, “Peaceably; I have come to sacrifice to the LORD. Sanctify yourselves, and come with me to the sacrifice.” Then he consecrated Jesse and his sons, and invited them to the sacrifice.