1 Samuel 16:1-5

Now the LORD said to Samuel, “How long will you grieve over Saul, since I have rejected him from being king over Israel? Fill your horn with oil and go; I will send you to Jesse the Bethlehemite, for I have selected a king for Myself among his sons.” But Samuel said, “How can I go? When Saul hears of it, he will kill me.” And the LORD said, “Take a heifer with you and say, ‘I have come to sacrifice to the LORD.’ You shall invite Jesse to the sacrifice, and I will show you what you shall do; and you shall anoint for Me the one whom I designate to you.” So Samuel did what the LORD said, and came to Bethlehem. And the elders of the city came trembling to meet him and said, “Do you come in peace?” He said, “In peace; I have come to sacrifice to the LORD. Consecrate yourselves and come with me to the sacrifice.” He also consecrated Jesse and his sons and invited them to the sacrifice.