עשירית האפה סלת מנחה תמיד מחציתה בבקר ומחציתה בערב
The Kohen hedyot, ordinary Kohen, brought his Korban Tamid, continual offering, once upon his induction into the avodah, service. The Kohen Gadol, High Priest, brought it daily: half of the tenth-eifah in the morning; and half in the evening. The Mishnah in Menachos (50b) teaches that the tenth-eifah is split in half, with half brought in the morning and the other half in the evening. It is required that the two halves are from the same whole tenth-eifah. The Kohen may not use a half that he had at home. The Rishonim debate whether the twelve breads that are used…