1 Samuel 16:1-7 ESV
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 provided for myself a king among his sons.” And Samuel said, “How can I go? If Saul hears it, he will kill me.” And the LORD said, “Take a heifer with you and say, ‘I have come to sacrifice to the LORD.’ And invite Jesse to the sacrifice, and I will show you what you shall do. And you shall anoint for me him whom I declare to you.” Samuel did what the LORD commanded and came to Bethlehem. The elders of the city came to meet him trembling and said, “Do you come peaceably?” And he said, “Peaceably; I have come to sacrifice to the LORD. Consecrate yourselves, and come with me to the sacrifice.” And he consecrated Jesse and his sons and invited them to the sacrifice.
When they came, he looked on Eliab and thought, “Surely the LORD’s anointed is before him.” But the LORD said to Samuel, “Do not look on his appearance or on the height of his stature, because I have rejected him. For the LORD sees not as man sees: man looks on the outward appearance, but the LORD looks on the heart.”
ESV: English Standard Version 2016