1 Samuel 17:55-58

As Saul watched David go out to fight the Philistine, he asked Abner, the commander of his army, “Abner, whose son is this young man?” “I really don’t know,” Abner declared. “Well, find out who he is!” the king told him. As soon as David returned from killing Goliath, Abner brought him to Saul with the Philistine’s head still in his hand. “Tell me about your father, young man,” Saul said. And David replied, “His name is Jesse, and we live in Bethlehem.”