1 Samuel 16:1-4

Now the Lord said to Samuel, “How long are you going to mourn for 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, because I have chosen a king for Myself among his sons.”

But Samuel said, “How can I go? When Saul hears about it, he will kill me.” But the Lord said, “Take a heifer with you and say, ‘I have come to sacrifice to the Lord.’

And you shall invite Jesse to the sacrifice, and I will let you know what you shall do; and you shall anoint for Me the one whom I designate to you.”

So Samuel did what the Lord told him, and he came to Bethlehem. Then the elders of the city came trembling to meet him and said, “Do you come in peace?”