1 Samuel 17:8-16

8Goliath stood and shouted to the ranks of Israel, “Why do you come out and line up for battle? Am I not a Philistine, and are you not the servants of Saul? Choose a man and have him come down to me. 9If he is able to fight and kill me, we will become your subjects; but if I overcome him and kill him, you will become our subjects and serve us.” 10Then the Philistine said, “This day I defy the armies of Israel! Give me a man and let us fight each other.”

11On hearing the Philistine’s words, Saul and all the Israelites were dismayed and terrified. 12Now David was the son of an Ephrathite named Jesse, who was from Bethlehem in Judah. Jesse had eight sons, and in Saul’s time he was very old. 13Jesse’s three oldest sons had followed Saul to the war: The firstborn was Eliab; the second, Abinadab; and the third, Shammah. 14David was the youngest. The three oldest followed Saul,

15but David went back and forth from Saul to tend his father’s sheep at Bethlehem.

16For forty days the Philistine came forward every morning and evening and took his stand.