Leviticus 6:17

‘Now when anyone brings near a grain offering as an offering to Yahweh, his offering shall be of fine flour, and he shall pour oil on it and put frankincense on it.

‘No grain offering, which you bring near to Yahweh, shall be made with leaven, for you shall not offer up in smoke any leaven or any honey as an offering by fire to Yahweh.

‘And every male among the priests may eat of it; it is most holy.

Then Moses spoke to Aaron and to his remaining sons, Eleazar and Ithamar, “Take the remaining grain offering from the offerings to Yahweh by fire and eat it unleavened beside the altar, for it is most holy.