I Samuel 21:1-2

Now David came to Nob, to Ahimelech the priest. And Ahimelech was afraid when he met David, and said to him, “Why are you alone, and no one is with you?” So David said to Ahimelech the priest, “The king has ordered me on some business, and said to me, ‘Do not let anyone know anything about the business on which I send you, or what I have commanded you.’ And I have directed my young men to such and such a place.