1 Samuel 16:3-5

Amplified Bible

³ You shall invite Jesse to the sacrifice, and I will show you what you shall do [after that]; and you shall anoint for Me the one whom I designate.” ⁴ 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?” ⁵ And 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.