1 Samuel 17:5-15

and wore a bronze helmet and bronze scale armor that weighed one hundred twenty-five pounds.  There was bronze armor on his shins, and a bronze javelin  was slung between his shoulders. His spear shaft  was like a weaver’s beam, and the iron point of his spear weighed fifteen pounds.  In addition, a shield-bearer  was walking in front of him. He stood and shouted to the Israelite battle formations, “Why do you come out to line up in battle formation? ” He asked them, “Am I not a Philistine and are you not servants of Saul?  Choose one of your men and have him come down against me. If he wins in a fight against me and kills me, we will be your servants. But if I win against him and kill him, then you will be our servants and serve us.”  Then the Philistine said, “I defy the ranks of Israel today.  Send me a man so we can fight each other! ” When Saul and all Israel heard these words from the Philistine, they lost their courage and were terrified. Now David was the son of the Ephrathite  from Bethlehem of Judah named Jesse. Jesse had eight sons  and during Saul’s reign was already an old man. Jesse’s three oldest sons had followed Saul to the war, and their names  were Eliab, the firstborn, Abinadab, the next, and Shammah, the third, and David was the youngest.  The three oldest had followed Saul, but David kept going back and forth from Saul  to tend his father’s flock in Bethlehem.