Rashi comments to the words "Aron Ha-Elokim" in Shmuel I 14:18, saying that these words refer to the Urim Ve-Tumim. Why does Rashi understand these words to be referring to the Urim Ve-Tumim, when simply understood they refer to the Aron Ha-Kodesh? For instance, the Aron Ha-Kodesh is frequently called the Aron Ha-Elokim in Shmuel I Chapter 5.
It seems to be related to the idea of inquiring of it what course of action they should take. This is like Sforno explains to Devarim 18:13 which says:
תמים תהיה: שלם עמו שגם בדרישת העתידות לא תדרוש זולתו אבל תדרוש ע''י נביא או על ידי אורים ותומים:
That was something specifically related to the Urim v'Tumim, and not the Aron HaKodesh.