1 Samuel 20:5-10

David replied, “Tomorrow we celebrate the new moon festival. I’ve always eaten with the king on this occasion, but tomorrow I’ll hide in the field and stay there until the evening of the third day. If your father asks where I am, tell him I asked permission to go home to Bethlehem for an annual family sacrifice. If he says, ‘Fine!’ you will know all is well. But if he is angry and loses his temper, you will know he is determined to kill me. Show me this loyalty as my sworn friend—for we made a solemn pact before the LORD—or kill me yourself if I have sinned against your father. But please don’t betray me to him!” “Never!” Jonathan exclaimed. “You know that if I had the slightest notion my father was planning to kill you, I would tell you at once.” Then David asked, “How will I know whether or not your father is angry?”